This document appears to be a set of exam questions for a Chemical Engineering Thermodynamics course. It includes 8 questions related to various thermodynamics concepts like:
1) Defining work, internal energy, kinetic energy and potential energy. Calculating potential energy of water falling from a height.
2) Computing degrees of freedom for different chemical systems.
3) Defining ideal gas and related assumptions, as well as isothermal compressibility and coefficient of volume expansion.
4) Calculating exit velocity of steam through a nozzle using given parameters.
5) Judging whether claims about a hypothetical heat engine's operation are acceptable.
6) Calculating entropy changes for water brought into
C H E M I C A L R E A C T I O N E N G I N E E R I N G I J N T U M O D E L ...guest3f9c6b
This document contains a chemical engineering exam from November 2007 with 8 multiple choice questions covering various topics in chemical reaction engineering. The questions involve calculations related to batch and plug flow reactor kinetics, determination of rate constants and rate equations from experimental data, sizing of reactors, and specification of reaction conditions.
This document contains sample questions and answers for a chemistry exam. It includes multiple choice and structured questions on topics like chemical formulas, chemical reactions, periodic table, and bonding. The document provides answers to sample exam questions on these chemistry topics in a modular format with the question number and corresponding answer and mark for each question.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
The document presents a mathematical model to predict sugar loss in fresh produce during storage based on a respiratory model. It derives an equation relating sugar consumption to carbon dioxide production during respiration based on an existing respiration rate equation. The model was validated using experimental data on sugar content and respiration rates during storage of shredded cabbage and broccoli florets at different temperatures. The equation allows predicting sugar losses at various storage periods and temperatures, and estimating remaining sugar content and shelf life of fresh produce.
The document summarizes research on technetium metal and carbide phases. Key findings include:
1) A new orthorhombic phase of technetium metal was discovered with unit cell parameters of a = 2.805(4), b = 4.958(8), c = 4.474(5) Å for samples containing 1.38 wt.% carbon.
2) Softer conditions than previously reported were able to form technetium carbide, with a cubic phase observed at 800°C containing carbon in defective sites within the fcc structure.
3) Technetium carbide has a microhardness that is 2-2.5 times higher than pure technetium
1. The document contains an unsolved chemistry practice test with 43 multiple choice questions and answers related to topics like atomic structure, chemical bonding, thermodynamics, kinetics and equilibrium.
2. The questions cover concepts such as Bohr model, de Broglie wavelength, Lewis structures, IUPAC naming, acid-base reactions, salt solubility, electrolysis, redox reactions, colligative properties, rate laws, free energy and entropy changes.
3. The document tests understanding of fundamental chemistry principles as well as the ability to apply these principles to solve quantitative problems.
This document discusses chemical bonding and dipole moments. It contains questions about the units of dipole moment, molecules with zero dipole moment, factors that determine whether a molecule has a dipole moment, and bond properties like bond length, bond energy, and hybridization.
Nitrogen containing carbon nanotubes as supports for pt – alternate anodes fo...kutty79
This document summarizes research on using nitrogen-containing carbon nanotubes as supports for platinum nanoparticles as an alternative anode catalyst for direct methanol fuel cells. Key points:
1. Nitrogen-containing carbon nanotubes were synthesized using an alumina membrane template and pyrolysis of polyvinylpyrrolidone polymer.
2. Highly dispersed platinum nanoparticles around 3nm in size were uniformly deposited on the nitrogen-containing carbon nanotubes.
3. Electrochemical testing found the platinum catalyst supported on nitrogen-containing carbon nanotubes had over 10 times higher catalytic activity for methanol oxidation compared to a commercial platinum on carbon catalyst.
C H E M I C A L R E A C T I O N E N G I N E E R I N G I J N T U M O D E L ...guest3f9c6b
This document contains a chemical engineering exam from November 2007 with 8 multiple choice questions covering various topics in chemical reaction engineering. The questions involve calculations related to batch and plug flow reactor kinetics, determination of rate constants and rate equations from experimental data, sizing of reactors, and specification of reaction conditions.
This document contains sample questions and answers for a chemistry exam. It includes multiple choice and structured questions on topics like chemical formulas, chemical reactions, periodic table, and bonding. The document provides answers to sample exam questions on these chemistry topics in a modular format with the question number and corresponding answer and mark for each question.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
The document presents a mathematical model to predict sugar loss in fresh produce during storage based on a respiratory model. It derives an equation relating sugar consumption to carbon dioxide production during respiration based on an existing respiration rate equation. The model was validated using experimental data on sugar content and respiration rates during storage of shredded cabbage and broccoli florets at different temperatures. The equation allows predicting sugar losses at various storage periods and temperatures, and estimating remaining sugar content and shelf life of fresh produce.
The document summarizes research on technetium metal and carbide phases. Key findings include:
1) A new orthorhombic phase of technetium metal was discovered with unit cell parameters of a = 2.805(4), b = 4.958(8), c = 4.474(5) Å for samples containing 1.38 wt.% carbon.
2) Softer conditions than previously reported were able to form technetium carbide, with a cubic phase observed at 800°C containing carbon in defective sites within the fcc structure.
3) Technetium carbide has a microhardness that is 2-2.5 times higher than pure technetium
1. The document contains an unsolved chemistry practice test with 43 multiple choice questions and answers related to topics like atomic structure, chemical bonding, thermodynamics, kinetics and equilibrium.
2. The questions cover concepts such as Bohr model, de Broglie wavelength, Lewis structures, IUPAC naming, acid-base reactions, salt solubility, electrolysis, redox reactions, colligative properties, rate laws, free energy and entropy changes.
3. The document tests understanding of fundamental chemistry principles as well as the ability to apply these principles to solve quantitative problems.
This document discusses chemical bonding and dipole moments. It contains questions about the units of dipole moment, molecules with zero dipole moment, factors that determine whether a molecule has a dipole moment, and bond properties like bond length, bond energy, and hybridization.
Nitrogen containing carbon nanotubes as supports for pt – alternate anodes fo...kutty79
This document summarizes research on using nitrogen-containing carbon nanotubes as supports for platinum nanoparticles as an alternative anode catalyst for direct methanol fuel cells. Key points:
1. Nitrogen-containing carbon nanotubes were synthesized using an alumina membrane template and pyrolysis of polyvinylpyrrolidone polymer.
2. Highly dispersed platinum nanoparticles around 3nm in size were uniformly deposited on the nitrogen-containing carbon nanotubes.
3. Electrochemical testing found the platinum catalyst supported on nitrogen-containing carbon nanotubes had over 10 times higher catalytic activity for methanol oxidation compared to a commercial platinum on carbon catalyst.
Maiyalagan,Performance of carbon nanofiber supported pd ni catalysts for elec...kutty79
Carbon nanofibers (CNF) supported Pd–Ni nanoparticles have been prepared by chemical reduction
with NaBH4 as a reducing agent. The Pd–Ni/CNF catalysts were characterized by X-ray diffraction
(XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical
voltammetry analysis. TEM showed that the Pd–Ni particles were quite uniformly distributed on the
surface of the carbon nanofiber with an average particle size of 4.0 nm. The electro-catalytic activity of
the Pd–Ni/CNF for oxidation of ethanol was examined by cyclic voltammetry (CV). The onset potential
was 200mV lower and the peak current density four times higher for ethanol oxidation for Pd–Ni/CNF
compared to that for Pd/C. The effect of an increase in temperature from 20 to 60 ◦C had a great effect on
increasing the ethanol oxidation activity
Maiyalagan,Electrochemical oxidation of methanol on pt v2 o5–c composite cata...kutty79
Platinum nanoparticles have been supported on V2O5–C composite through the reduction of chloroplatinic
acid with formaldehyde. The catalyst was characterized by X-ray diffraction and transmission electron
microscopy. Catalytic activity and stability for the oxidation of methanol were studied by using
cyclic voltammetry and chronoamperometry. Pt/V2O5–C composite anode catalyst on glassy carbon electrode
show higher electro-catalytic activity for the oxidation of methanol. High electro-catalytic activities
and good stabilities could be attributed to the synergistic effect between Pt and V2O5, avoiding the electrodes
being poisoned.
This document contains a 30 question chemistry sample exam with multiple choice and long answer questions. It provides instructions for the exam, including question types and point values. The questions cover topics such as chemical formulas, hybrid orbitals, equilibrium reactions, acid-base chemistry, and organic chemistry reactions. Sample solutions are provided for some questions as examples. The exam is designed to test understanding of essential chemistry concepts and principles.
This document provides a chemistry sample paper with 30 questions covering various topics in chemistry. It includes very short answer questions (1 mark), short answer questions (2-3 marks) and long answer questions (5 marks). The questions test a range of concepts including stoichiometry, gas laws, equilibrium, electrochemistry, organic chemistry and more. Sample solutions are provided for some questions to illustrate the expected level of detail in the responses. The document serves as a practice test for students to evaluate their understanding of key chemistry concepts.
This document provides a sample chemistry exam paper with 30 questions testing various concepts in chemistry. The questions cover topics like stoichiometry, gas laws, electronic configuration, periodic properties, chemical bonding, thermodynamics, and organic chemistry. The paper tests knowledge through calculations, explaining concepts, deriving relationships, and predicting properties and reactions. It provides worked solutions for multiple choice and multi-part questions assessing a range of skills in chemistry.
In situ XAFS studies of carbon supported Pt and PtNi(1:1) catalysts for the o...qjia
it\'s a presentation for APS Meeting In Iowa. It mainly introduces our work of rationalizing the superior reactivity of certain commercial alloy nanocatalysts by probing their physical and chemical properties through x-ray experiments and theoretical model simulation.
Chemistry zimsec chapter 6 chemical energeticsalproelearning
1) The document discusses chemical energetics, specifically enthalpy changes, standard enthalpy changes, and Hess' law.
2) It defines exothermic and endothermic reactions, and explains how to calculate enthalpy changes from experimental temperature change data using standard formulas.
3) Standard enthalpy changes are discussed for various types of reactions including formation, combustion, neutralization, and others. Hess' law is introduced which states that the total enthalpy change is independent of reaction path as long as initial and final states are the same.
This document contains a chemistry exam with 23 multiple choice questions covering topics like wavelengths and energies of photons, benzene structure, ionization energies, vapor pressures, bond lengths in organic compounds, IUPAC naming of complexes, stoichiometric calculations, kinetics of reactions, thermodynamics, acid-base titrations, and properties of buffer solutions. The questions test understanding of fundamental chemistry concepts as well as the ability to set up and solve quantitative problems.
Este documento discute os efeitos do álcool e da nicotina na saúde. O álcool pode levar ao alcoolismo e danificar o fígado, causando cirrose hepática. A nicotina contida nos cigarros é uma droga estimulante que pode causar câncer de pulmão. Ambas as substâncias têm efeitos estimulantes e depressivos no sistema nervoso central e aumentam a pressão arterial.
Maiyalagan,Performance of carbon nanofiber supported pd ni catalysts for elec...kutty79
Carbon nanofibers (CNF) supported Pd–Ni nanoparticles have been prepared by chemical reduction
with NaBH4 as a reducing agent. The Pd–Ni/CNF catalysts were characterized by X-ray diffraction
(XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical
voltammetry analysis. TEM showed that the Pd–Ni particles were quite uniformly distributed on the
surface of the carbon nanofiber with an average particle size of 4.0 nm. The electro-catalytic activity of
the Pd–Ni/CNF for oxidation of ethanol was examined by cyclic voltammetry (CV). The onset potential
was 200mV lower and the peak current density four times higher for ethanol oxidation for Pd–Ni/CNF
compared to that for Pd/C. The effect of an increase in temperature from 20 to 60 ◦C had a great effect on
increasing the ethanol oxidation activity
Maiyalagan,Electrochemical oxidation of methanol on pt v2 o5–c composite cata...kutty79
Platinum nanoparticles have been supported on V2O5–C composite through the reduction of chloroplatinic
acid with formaldehyde. The catalyst was characterized by X-ray diffraction and transmission electron
microscopy. Catalytic activity and stability for the oxidation of methanol were studied by using
cyclic voltammetry and chronoamperometry. Pt/V2O5–C composite anode catalyst on glassy carbon electrode
show higher electro-catalytic activity for the oxidation of methanol. High electro-catalytic activities
and good stabilities could be attributed to the synergistic effect between Pt and V2O5, avoiding the electrodes
being poisoned.
This document contains a 30 question chemistry sample exam with multiple choice and long answer questions. It provides instructions for the exam, including question types and point values. The questions cover topics such as chemical formulas, hybrid orbitals, equilibrium reactions, acid-base chemistry, and organic chemistry reactions. Sample solutions are provided for some questions as examples. The exam is designed to test understanding of essential chemistry concepts and principles.
This document provides a chemistry sample paper with 30 questions covering various topics in chemistry. It includes very short answer questions (1 mark), short answer questions (2-3 marks) and long answer questions (5 marks). The questions test a range of concepts including stoichiometry, gas laws, equilibrium, electrochemistry, organic chemistry and more. Sample solutions are provided for some questions to illustrate the expected level of detail in the responses. The document serves as a practice test for students to evaluate their understanding of key chemistry concepts.
This document provides a sample chemistry exam paper with 30 questions testing various concepts in chemistry. The questions cover topics like stoichiometry, gas laws, electronic configuration, periodic properties, chemical bonding, thermodynamics, and organic chemistry. The paper tests knowledge through calculations, explaining concepts, deriving relationships, and predicting properties and reactions. It provides worked solutions for multiple choice and multi-part questions assessing a range of skills in chemistry.
In situ XAFS studies of carbon supported Pt and PtNi(1:1) catalysts for the o...qjia
it\'s a presentation for APS Meeting In Iowa. It mainly introduces our work of rationalizing the superior reactivity of certain commercial alloy nanocatalysts by probing their physical and chemical properties through x-ray experiments and theoretical model simulation.
Chemistry zimsec chapter 6 chemical energeticsalproelearning
1) The document discusses chemical energetics, specifically enthalpy changes, standard enthalpy changes, and Hess' law.
2) It defines exothermic and endothermic reactions, and explains how to calculate enthalpy changes from experimental temperature change data using standard formulas.
3) Standard enthalpy changes are discussed for various types of reactions including formation, combustion, neutralization, and others. Hess' law is introduced which states that the total enthalpy change is independent of reaction path as long as initial and final states are the same.
This document contains a chemistry exam with 23 multiple choice questions covering topics like wavelengths and energies of photons, benzene structure, ionization energies, vapor pressures, bond lengths in organic compounds, IUPAC naming of complexes, stoichiometric calculations, kinetics of reactions, thermodynamics, acid-base titrations, and properties of buffer solutions. The questions test understanding of fundamental chemistry concepts as well as the ability to set up and solve quantitative problems.
Este documento discute os efeitos do álcool e da nicotina na saúde. O álcool pode levar ao alcoolismo e danificar o fígado, causando cirrose hepática. A nicotina contida nos cigarros é uma droga estimulante que pode causar câncer de pulmão. Ambas as substâncias têm efeitos estimulantes e depressivos no sistema nervoso central e aumentam a pressão arterial.
M E C H A N I C A L E N G I N E E R I N G J N T U M O D E L P A P E R{Wwwguest3f9c6b
The document is a practice exam for a Mechanical Engineering course. It contains 8 questions across 4 sets covering topics in thermodynamics, heat engines, compressors, and mechanical drives. The questions involve calculations related to processes, cycles, efficiencies, and power transmission. They require applying thermodynamic laws, cycles, and equations as well as mechanical drive concepts like pulleys, belts, gears and bearings.
This document contains an engineering thermodynamics exam with multiple choice and long answer questions covering various thermodynamics concepts and processes. The exam is divided into three parts:
Part A contains 10 multiple choice definitions and calculations worth 2 marks each. Part B contains 3 long answer problems worth 16 marks each, involving calculations for cycles, processes and thermodynamic properties. Part C also contains 3 long answer problems involving derivations, property relations, and psychrometric processes. The exam tests knowledge of thermodynamic laws, cycles, availability analysis, property relations and psychrometric processes.
ME6301 ENGINEERING THERMODYNAMICS ANNA UNIVERSITY QUESTION PAPER may june 2013BIBIN CHIDAMBARANATHAN
This document contains a 15 question exam on engineering thermodynamics. It covers topics like:
1) Calculating mass of wet steam given temperature and dryness fraction
2) Analyzing heat engines and determining heat transfer and work done
3) Calculating availability and irreversibility in thermodynamic processes
4) Analyzing phase changes using temperature-volume diagrams
5) Deriving equations like Clausius-Clapeyron and determining state changes in ideal gases
6) Explaining psychrometric processes like adiabatic mixing and evaporative cooling
The exam tests understanding of concepts across thermodynamics, thermodynamic cycles, and psychrometrics.
This document contains 8 thermodynamics practice problems and their solutions. It provides details on processes like polytropic expansion, steam turbine cycles, gas mixtures, calorimetry, refrigeration cycles, internal energy, and more. The problems cover concepts in closed, open and isolated systems, the first and second laws of thermodynamics, and applying thermodynamic equations to calculate work, heat and efficiency.
This document appears to be an exam for an engineering thermodynamics course, as it covers various concepts in thermodynamics. It contains 15 multi-part questions testing knowledge of topics like the first and second laws of thermodynamics, cycles, phase changes, properties of mixtures, and psychrometrics. The questions involve calculations related to closed systems undergoing various thermodynamic processes, including constant pressure, polytropic, and mixing processes. Students are asked to determine quantities like efficiency, work, heat, and entropy change. Diagrams are also referenced, like T-S and P-V diagrams that would be helpful for representing thermodynamic cycles.
BASIC AND APPLIED THERMODYNAMICS paper analysis GTUTakshil Gajjar
1. The document analyzes past questions from a GTU paper on engineering thermodynamics. It summarizes the number of times various topics from two chapters (basic concepts and first law of thermodynamics) have appeared on papers from 2015 to 2018.
2. Key topics included intensive/extensive properties, open/closed/isolated systems, the first law of thermodynamics, the steady flow energy equation, work, heat, and applications like nozzles and turbines. Common example problems involved steam tables, turbines, refrigerators and calculating work, heat and efficiency.
3. The document provides a similar analysis for two additional chapters on the second law of thermodynamics and entropy, listing common theory and example questions
This document contains a question paper for an engineering thermodynamics examination. It has two parts - Part A consists of 10 short answer questions worth 2 marks each. Part B contains 5 long answer questions worth 16 marks each. The questions test concepts related to thermodynamics, including the definitions of key terms, thermodynamic processes like the Carnot cycle, properties of pure substances and mixtures, psychrometric processes, and application of the first law and second law of thermodynamics to closed and open systems. The document also provides information on the regulations and maximum marks for the exam.
Chemicalreactionengineering I Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains a chemical engineering exam from November 2007 with 8 multiple choice questions covering various topics in chemical reaction engineering. The questions involve calculations related to batch and plug flow reactor kinetics, determination of rate constants and rate equations from experimental data, sizing of reactors, and specification of reaction conditions.
This document contains information about thermodynamic properties and processes. It includes a table with temperature and enthalpy values for water and ammonia. It also contains exam questions on various thermodynamic cycles and concepts like the Otto cycle, diesel cycle, refrigeration, and gas turbines. Key topics covered include ideal gas processes, heat engines, refrigerators, availability analysis, and the first and second laws of thermodynamics.
This document contains a test for an engineering thermodynamics exam with multiple choice and long answer questions. It covers topics like the first and second laws of thermodynamics, Carnot cycle efficiency, psychrometrics, gas properties, steam tables and Rankine cycle. The test has three parts with questions on thermodynamic processes, cycles, properties and applications to heating, cooling and power systems. Students are asked to analyze thermodynamic systems, calculate efficiencies, energy and mass transfers, exhaust velocities and more.
Chemical engineering thermo dynamics Ii Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
1. Water and a liquid mixture of propane and butane enter a vaporizer at 50°C and leave as vapors at 175°C. Hourly inputs are 25 kg water, 350 kg propane, and 550 kg butane.
2. Latent heats of vaporization and other thermodynamic properties are provided for each component.
3. The heat requirement of the vaporizer is estimated by calculating the heat needed to vaporize each component based on its latent heat of vaporization and mass flow rate, assuming vaporization occurs at each component's normal boiling point.
This document contains a 15 question exam on engineering thermodynamics. It includes questions about topics like:
- Definitions of specific humidity, relative humidity, evaporative cooling, and Joule-Kelvin effect
- Calculating work, heat, and changes in properties for constant pressure and isentropic processes
- Analyzing processes in heat engines, turbines, nozzles, and refrigeration systems
- Comparing real and ideal gas behavior and properties
This document appears to be an exam for an engineering thermodynamics course, consisting of 15 multi-part questions testing students' knowledge of key thermodynamics concepts. It begins with 10 short answer questions worth 2 marks each, followed by 5 longer form questions worth 16 marks each. The questions cover topics like the laws of thermodynamics, entropy, phase changes, psychrometrics, gas cycles, and thermodynamic processes and cycles. The exam is assessing students' understanding of fundamental thermodynamic principles as well as their ability to apply those principles to analyze thermodynamic systems and cycles.
This document contains an engineering thermodynamics exam with multiple choice and numerical problems. It begins with introductory information about the exam such as the course, date, and maximum marks. The exam is divided into two parts:
Part A contains 10 multiple choice questions testing definitions and concepts in thermodynamics. Part B contains 5 longer form problems, two choices for each, involving calculations related to thermodynamic cycles, properties of matter, psychrometrics, and other topics.
This document contains an exam for an engineering thermodynamics course, with 15 multi-part questions testing students' knowledge of key thermodynamics concepts and their ability to apply them to solve problems. The questions cover topics like the first and second laws of thermodynamics, properties of ideal gases, entropy, heat engines, refrigerators, the Rankine cycle, psychrometrics, and use of thermodynamic tables and charts. Students are asked to derive equations, define terms, discuss concepts, and perform calculations involving heat, work, enthalpy, entropy, efficiency, and other variables. The exam is designed to evaluate students' comprehensive understanding of thermodynamics and its applications.
1. A gas is compressed from 6.0 L to 4.0 L at a constant temperature of 5.0 atm. The work done on the gas is +30 liter atm.
2. A system's internal energy increases by 80 J when 50 J of work is done on it. The heat change of the system is +30 J.
3. A refrigerator operates in a cyclic and reversible manner between 0°C inside and 27°C outside. If it absorbs 334.72x103 J from the inside, the heat rejected outside is 340 J.
This document appears to be a question paper for an engineering thermodynamics exam consisting of multiple choice and numerical problems. It covers topics like thermodynamic equilibrium, Carnot cycle efficiency, ideal gas properties, vaporization enthalpy, adiabatic saturation temperature, gas turbine cycle analysis, heat pumps, refrigeration, steam power cycles, psychrometrics, and Maxwell relations. The problems involve calculations related to compression, expansion, heat transfer, work, efficiency, and using properties from thermodynamic tables and charts.
1. The document contains two model question papers for an Engineering Chemistry exam with questions covering various topics in five modules: batteries and fuels, corrosion and electrochemistry, fuels and solar energy, environmental pollution and instrumentation.
2. The questions include definitions, explanations of concepts, derivations of equations, numerical problems, and diagrams requiring calculation of forces, reactions, stresses and other parameters.
3. The questions assess students' understanding of fundamental chemical and engineering concepts as well as their ability to apply these concepts to solve practical problems.
ME6301 ENGINEERING THERMODYNAMICS ANNA UNIVERSITY QUESTION PAPER may june 2007BIBIN CHIDAMBARANATHAN
This document contains a mechanical engineering exam with questions on thermodynamics. It includes:
1) Definitions of key thermodynamics concepts like internal energy, reversible processes, and equations of state.
2) Calculations involving processes like throttling, isentropic expansion, isothermal compression, and heat exchange.
3) Explanations of thermodynamic cycles like Rankine and concepts like entropy, Maxwell's relations, and the Joule-Thomson effect.
4) Diagrams including p-V, T-s, psychrometric charts and the depiction of phase changes and transitions on a p-T diagram.
5) Determination of properties for pure
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This document contains questions from a Mass Transfer Operations exam. It includes 8 questions related to various mass transfer topics like classification of mass transfer operations, diffusion, distillation design, and mass transfer correlations. The questions involve calculations related to diffusion rates, mass transfer coefficients, distillation column design parameters, and phase equilibrium data.
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This document contains an exam paper for an English exam with 8 questions. It provides context that the exam is for various engineering disciplines. The questions cover a range of topics including:
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- Discussing lessons from historical wars for India
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2. Ampere's circuital law, magnetic field calculations for conducting rods and coils.
3. Plane wave propagation in dielectric media, displacement current density.
4. Brewster's angle and refraction/reflection at dielectric interfaces.
5. Poynting vector, power calculations for waves incident on dielectric boundaries.
6. Parallel plate waveguide properties such as cutoff frequency.
7. Transmission line characteristics impedance and reflection coefficients.
8. Equivalent circuits for transmission lines of various
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This document contains information about an electrical circuits analysis exam, including 8 questions on various circuit analysis topics. The questions cover concepts like equivalent circuits, network theorems, transient response, 3-phase circuits, and parameter conversions. Students have 3 hours to answer any 5 of the 8 questions, which all carry equal marks. Sample questions include analyzing networks, calculating inductance and power, deriving expressions, and using techniques like mesh analysis and Norton's theorem.
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This document contains eight questions related to digital integrated circuits and applications. The questions cover topics such as CMOS and TTL gates, VHDL programming, counters, decoders, arithmetic circuits, memories and programmable logic devices. Students are instructed to answer any five of the eight questions, which can include circuit design problems, writing VHDL code, explaining concepts, and performing calculations. The exam is worth a total of 80 marks and is aimed at testing knowledge of digital logic design and implementation using integrated circuits.
Digital Control Systems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains questions from a digital control systems exam. It covers topics like digital to analog conversion, z-transforms, stability analysis of sampled data systems, time domain analysis of discrete time systems using block diagrams, root locus sketches, controller design, state space models, and Lyapunov stability analysis. The exam has 8 questions, with some having multiple parts. Students are instructed to answer any 5 questions out of the 8 given.
Designofmachinemembers I Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
The document is a study guide containing 8 practice problems for a Design of Machine Members exam. The problems cover various topics in machine design including stresses induced in composite bars due to temperature changes, factors affecting endurance limits, advantages/disadvantages of welded vs riveted joints, bolt sizing, cotter and knuckle joint design, and hollow vs solid shaft design. Students are asked to calculate stresses, sizes of bolts, rivets, joints, and shafts based on given loading and material properties.
Digital Communications Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains exam questions for the subject Digital Communications. It has 8 questions divided into 3 sets. The questions cover various topics in digital communications including PCM, delta modulation, digital modulation techniques, bandwidth calculations, error probability analysis, channel capacity, linear block codes and conventional codes. Students are required to answer any 5 questions out of the 8 questions.
Databasemanagementsystems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document appears to be an exam for a Database Management Systems course, as it contains 8 questions related to various DBMS topics. The exam instructs students to answer any 5 of the 8 questions. Each question is worth equal marks, with the total exam being out of 80 marks. The questions cover topics such as data modeling, relational algebra, indexing, concurrency control, recovery techniques, and more. Students are asked to explain concepts, provide examples, and solve problems related to database design, query processing, and transaction management.
Decision Support Systems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
The document contains questions from a Decision Support Systems exam for a B.Tech program. It covers various topics related to DSS including:
1) Human and Kepner-Tregoe decision making methods
2) Types of DSS software and client/server computing
3) Components of corporate models and electronic meeting styles
4) Expert systems, knowledge bases, and queuing disciplines
5) Data warehouses, extraction/loading stages, and multi-dimensional databases
The questions require explanations of concepts, comparison of approaches, and short answers testing understanding of key DSS topics.
Must Know Postgres Extension for DBA and Developer during MigrationMydbops
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
Abstract: Discover how PostgreSQL extensions can be your secret weapon! This talk explores how key extensions enhance database capabilities and streamline the migration process for users moving from other relational databases like Oracle.
Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
Twitter: https://twitter.com/mydbopsofficial
Blogs: https://www.mydbops.com/blog/
Facebook(Meta): https://www.facebook.com/mydbops/
Essentials of Automations: Exploring Attributes & Automation ParametersSafe Software
Building automations in FME Flow can save time, money, and help businesses scale by eliminating data silos and providing data to stakeholders in real-time. One essential component to orchestrating complex automations is the use of attributes & automation parameters (both formerly known as “keys”). In fact, it’s unlikely you’ll ever build an Automation without using these components, but what exactly are they?
Attributes & automation parameters enable the automation author to pass data values from one automation component to the next. During this webinar, our FME Flow Specialists will cover leveraging the three types of these output attributes & parameters in FME Flow: Event, Custom, and Automation. As a bonus, they’ll also be making use of the Split-Merge Block functionality.
You’ll leave this webinar with a better understanding of how to maximize the potential of automations by making use of attributes & automation parameters, with the ultimate goal of setting your enterprise integration workflows up on autopilot.
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.
inQuba Webinar Mastering Customer Journey Management with Dr Graham HillLizaNolte
HERE IS YOUR WEBINAR CONTENT! 'Mastering Customer Journey Management with Dr. Graham Hill'. We hope you find the webinar recording both insightful and enjoyable.
In this webinar, we explored essential aspects of Customer Journey Management and personalization. Here’s a summary of the key insights and topics discussed:
Key Takeaways:
Understanding the Customer Journey: Dr. Hill emphasized the importance of mapping and understanding the complete customer journey to identify touchpoints and opportunities for improvement.
Personalization Strategies: We discussed how to leverage data and insights to create personalized experiences that resonate with customers.
Technology Integration: Insights were shared on how inQuba’s advanced technology can streamline customer interactions and drive operational efficiency.
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...DanBrown980551
This LF Energy webinar took place June 20, 2024. It featured:
-Alex Thornton, LF Energy
-Hallie Cramer, Google
-Daniel Roesler, UtilityAPI
-Henry Richardson, WattTime
In response to the urgency and scale required to effectively address climate change, open source solutions offer significant potential for driving innovation and progress. Currently, there is a growing demand for standardization and interoperability in energy data and modeling. Open source standards and specifications within the energy sector can also alleviate challenges associated with data fragmentation, transparency, and accessibility. At the same time, it is crucial to consider privacy and security concerns throughout the development of open source platforms.
This webinar will delve into the motivations behind establishing LF Energy’s Carbon Data Specification Consortium. It will provide an overview of the draft specifications and the ongoing progress made by the respective working groups.
Three primary specifications will be discussed:
-Discovery and client registration, emphasizing transparent processes and secure and private access
-Customer data, centering around customer tariffs, bills, energy usage, and full consumption disclosure
-Power systems data, focusing on grid data, inclusive of transmission and distribution networks, generation, intergrid power flows, and market settlement data
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Session 1 - Intro to Robotic Process Automation.pdfUiPathCommunity
👉 Check out our full 'Africa Series - Automation Student Developers (EN)' page to register for the full program:
https://bit.ly/Automation_Student_Kickstart
In this session, we shall introduce you to the world of automation, the UiPath Platform, and guide you on how to install and setup UiPath Studio on your Windows PC.
📕 Detailed agenda:
What is RPA? Benefits of RPA?
RPA Applications
The UiPath End-to-End Automation Platform
UiPath Studio CE Installation and Setup
💻 Extra training through UiPath Academy:
Introduction to Automation
UiPath Business Automation Platform
Explore automation development with UiPath Studio
👉 Register here for our upcoming Session 2 on June 20: Introduction to UiPath Studio Fundamentals: https://community.uipath.com/events/details/uipath-lagos-presents-session-2-introduction-to-uipath-studio-fundamentals/
Session 1 - Intro to Robotic Process Automation.pdf
C H E M I C A L E N G I N E E R I N G T H E R M O D Y N A M I C S I J N T U B T E C H 2008 J N T U M O D E L P A P E R{Www
1. www.studentyogi.com www.studentyogi.com
Code No: R05220802
Set No. 1
II B.Tech II Semester Regular Examinations, Apr/May 2008
CHEMICAL ENGINEERING THERMODYNAMICS-I
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) De ne the following:
i. Work
ii. Internal energy
iii. Kinetic energy
iv. Potential energy.
(b) Water is falling from a height of 100 metre, at a rate of 5000 kg/hr is used to
feed turbine in a hydro electric power station. What is potential energy?
[8+8]
2. Compute the degrees of freedom if,
(a) System is made up by liquid solution of alcohol and liquid water in equilibrium
with its vapours.
(b) System is made by partial decomposition of N 4Cl.
(c) A mixture of 2, 2 and N 3 exists in chemical equilibrium at elevated tem-
perature. [5+5+6]
3. (a) What is ideal gas? Name the two basic assumptions, which were made use of
in deriving the ideal gas equation of state from kinetic theory arguments.
(b) De ne isothermal compressibility and coe cient of volume expansion. [10+6]
4. Steam at 0.5MPa and 2000 C enters a nozzle with a velocity of 1m/s at the rate of
1kg/s and leaves as dry saturated steam at 0.1MPa. The energy loss as heat from
the nozzle is 10kJ/s. Calculate the exit velocity of steam. [16]
5. An inventor claims to have designed a heat engine, which absorbs 1500 kJ and
150kJ energy as heat from reservoirs at 1000K and 300K respectively and rejects
600kJ energy as a heat to a reservoir at 600K. It delivers 1050 kJ work. Judge,
whether the claim is acceptable or not. [16]
6. One kg of water at 273 K is brought into contact with a heat reservoir at 373 K.
When the water has reached 373 K, nd the entropy change of the water, of the
reservoir, and of the universe. Speci c heat of water is 4.187 kJ kg-1K-1. [16]
7. A refrigeration plant produces 0.135 kg/s of the ice at -40C from water at 290C. If
the power required to drive the plant is 24kW, determine the capacity of the ice
plant in tones and the actual COP. Cp of ice is 2.1 kJ kg-1 K-1. [16]
2. www.studentyogi.com www.studentyogi.com
Code No: R05220802
Set No. 1
8. (a) De ne availability.
(b) Does the availability depends upon the conditions of system and surroundings.
[6+10]
3. www.studentyogi.com www.studentyogi.com
Code No: R05220802
Set No. 2
II B.Tech II Semester Regular Examinations, Apr/May 2008
CHEMICAL ENGINEERING THERMODYNAMICS-I
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) What are various pre xes for SI units.
(b) An astronaut weighs 700 N in Houston, Texas, where the local acceleration of
gravity is 9.792 m -2. What are astronauts’ mass and weight on the moon,
where g is 1.67 m -2? [6+10]
2. (a) What is the necessity of classifying point and path functions?
(b) What is heat? Is it a path function? Explain. [8+8]
3. If one kmol of methane is stored in 0.32 3 tank at 302K, estimate the pressure of
the gas using Red lich - Kwong equation of state. The critical constants of methane
are Pc = 4.60 MPa and Tc = 190.6K. [16]
4. Ammonia gas is compressed from 210C and 200 kPa to 1010 kPa in an adiabatic
compressor with an e ciency of 0.81. Estimate the work required per mol of
ammonia, enthalpy and entropy changes of the ammonia. [16]
5. (a) A reversible engine absorbs 1150 kJ as heat from a source at 5750C, delivers
575 kJ as work and rejects the rest of the energy to a sink. Determine the
sink temperature.
(b) A Carnot engine absorbs 1100 kJ as heat from a reservoir at 550 K and rejects
energy to a sink at 295 K. Determine the e ciency of the engine and energy
rejected to the sink. [8+8]
6. A steel casting [ p = 0 5 -1 -1] weighing 40 kg and at a temperature of 4500C
is quenched in 150 kg of oil at 250C [ p = 0 25 -1 -1] If there are no heat
losses, what is the change in entropy of
(a) casting
(b) the oil and
(c) both considered together. [16]
7. A refrigeration plant produces 0.135 kg/s of the ice at -40C from water at 290C. If
the power required to drive the plant is 24kW, determine the capacity of the ice
plant in tones and the actual COP. Cp of ice is 2.1 kJ kg-1 K-1. [16]
8. A system has equation of state as, PV=ZRT,
show that, H Z [16]
pT = -RT 2 p
T
4. www.studentyogi.com www.studentyogi.com
Code No: R05220802
Set No. 3
II B.Tech II Semester Regular Examinations, Apr/May 2008
CHEMICAL ENGINEERING THERMODYNAMICS-I
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Is it possible that W = 0, even if dV=0? Given an example.
(b) A car of 1100 kg mass is moving with a speed of 80 km/h on a road, which is
120 m above the sea level. Calculate the kinetic energy and potential energy
of the car. [6+10]
2. A system is taken from state 1 to state 2 along a path A. During this process it
received 200 kJ energy as heat and does 100 kJ work. If the system is taken from
state 2 to state 1 by a di erent path B, it is necessary to spend 150 kJ work on
the system. Determine the heat interaction along the path B. Suppose the system
is restored to state 1 from state 2 by an adiabatic path C, how much work has to
the done on the system? [16]
3. If one kmol methane is stored in a 0.3 3 tank at 300K, estimate the pressure of
the gas using generalized compressibility. The critical constants of methane are Pc
= 4.60 MPa and Tc = 190.6K. [16]
4. Discuss the functioning of converging/diverging nozzle. Develop suitable equations.
[16]
5. A Carnot engine (I) operates between two reservoirs at temperatures 1920K and
TK while a second Carnot engine (I I) operates between the reservoirs at T K and
302K. It is found that both the engines have the same e ciency. Determine the
value of T. [16]
6. A uid undergoes a reversible adiabatic compression from 0.5 MPa, 0.2m3 to 0.05m3
according to the law, P 1.3 =constant. Determine the change in enthalpy, internal
energy and entropy during the pro cess. [16]
7. (a) What is the importance of COP of a refrigerator? A Carnot refrigerator is
operating between the reservoirs at -250C and 350C. Determine the COP of
the refrigerator.
(b) Determine the COP of a Carnot heat pump operating between -250C and
350C. [10+6]
8. A lump of 1000 kg steel at 1180 K is to be cooled to 398 K. If it is desired to use the
steel as a source of energy, calculate the available energy and unavailable energy.
The ambient temperature is 301 K and the speci c heat capacity of steel is 0.5 k J
kg-1 K-1. [16]
5. www.studentyogi.com www.studentyogi.com
Code No: R05220802
Set No. 4
II B.Tech II Semester Regular Examinations, Apr/May 2008
CHEMICAL ENGINEERING THERMODYNAMICS-I
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. The acceleration of gravity is given as a function of elevation above sea level by, g
= 980.6-3.086 × 10-6 H
where g is in cm/ 2, and H is in cm. If an aeroplane weighs 10,000 kgf at sea
level, what is the gravity force on it at 10,000 m elevation? What is the percentage
di erence from the sea level weight? [16]
2. (a) De ne the following:
i. State of the system,
ii. Properties of the system.
(b) What are intensive and extensive properties? [8+8]
3. (a) Name the two conditions, which every equation of state should satisfy.
(b) What are the units of the Van der Waals constants a and b. [10+6]
4. (a) What is multistage compression? What are its advantages.
(b) What is the objective of inter cooling in multistage compression? [10+6]
5. (a) A reversible engine absorbs 1200 kJ as heat from a source at 6000C, delivers
600 kJ as work and rejects the rest of the energy to a sink. Determine the
sink temperature.
(b) A Carnot engine absorbs 1000 kJ as heat from a reservoir at 500 K and rejects
energy to a sink at 300 K. Determine the e ciency of the engine and energy
rejected to the sink. [8+8]
6. One gram mol of nitrogen behaving as an ideal gas undergoes an irreversible isother-
mal compression from 1 to 10 atm at 1270C in a piston cylinder assembly. The
heat removed from the gas as a result of compression pro cess is absorbed by heat
sink maintained at a temperature of 270C. The irreversible process is 83% e cient
as compared to reversible process. Calculate S of the gas, S of the reservoir
and Stotal .
[16]
7. A refrigeration plant for a food store operates as a reversed Carnot heat engine cycle.
The store is to the maintained at a temperature of -5.50C and the heat transfer
from the store to the cycle is at the rate of 5.5kW. If the heat is transferred from
the cycle to the atmosphere at a temperature of 230C, Calculate the power required
to drive the plant. [16]
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Code No: R05220802
Set No. 4
8. A particular thermodynamic system has the following fundamental relation =
V N where C is a constant. Transform the given fundamental relation into the
CS3
enthalpy representation. [16]