Lecture 14 - Gas Mixtures
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This document discusses gas mixtures and thermodynamics. It covers applying mass and energy balances to find mass flow rates of gases like oxygen. Mole fractions of dry air and oxygen are also covered. Homework problems are assigned related to these topics.
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Lecture 12 - Gas Mixture
Thermodynamics II course taught at air university Islamabad by Sijal Ahmed.
In this lecture we have discussed about the gas-gas mixtures in general.
3.3 the mole
The document defines key concepts related to the mole including:
- The mole is a unit that represents 6.022x10^23 particles and allows chemists to conveniently work with substances at a macroscopic scale.
- One mole of any substance has a mass in grams numerically equal to its molar mass.
- Common calculations involve determining moles, mass, particles, or volume of a substance using its molar mass and amount in moles.
- The molar volume of a gas is 22.4L at STP allowing for volume calculations.
3.4 chemical formulas
The empirical formula provides the simplest whole number ratio of elements in a compound. It is determined through experimentation involving measuring mass of elements before and after a reaction. The molecular formula indicates the actual number of each type of atom in a molecule of the compound and can be determined from comparing the empirical formula mass to the measured molecular mass. The percentage composition by mass of each element in a compound can be calculated from the empirical formula. Structural formulas depict the specific arrangement of atoms in a molecule.
3.2 gas laws
The document discusses several gas laws:
- Boyle's law states that at constant temperature, the volume of a gas is inversely proportional to its pressure.
- Charles' law states that at constant pressure, the volume of a gas is directly proportional to its kelvin temperature.
- Combined gas law allows calculation of gas properties when temperature and/or pressure change.
It also discusses concepts like the kinetic molecular theory of gases and how real gases deviate from ideal gas behavior due to intermolecular forces and molecular size. Sample calculations demonstrate use of the gas laws and kinetic theory.
3.5 chemical equations
Chemical equations are used to represent chemical changes. They show the reactants and products of a reaction. A balanced chemical equation has the same number and type of atoms of each element on both sides. To balance an equation, the coefficients of the molecules are adjusted without changing subscripts so that atomic balance is achieved. Balanced equations indicate the mole ratios in which substances react, allowing for calculations relating amounts in moles of reactants and products.
Avogadro's law
Avogadro's law states that equal volumes of gases at the same temperature and pressure contain the same number of molecules. It provided a rational explanation for Gay-Lussac's law of combining volumes and indicated that elemental gases like hydrogen and chlorine exist as diatomic molecules. Avogadro's law also established a method for determining molecular weights of gases and helped develop the kinetic molecular theory. According to the law, if the amount of gas is increased or decreased, the volume will change proportionally.
C:\Fakepath\Notes Ii Standard Molar Volume And Iii The Ideal Gas Law
1. The standard molar volume is the volume occupied by 1 mole of an ideal gas at standard temperature and pressure (STP), which is defined as 0°C and 1 atmosphere of pressure. The standard molar volume is 22.4 L.
2. Gases are measured in moles, with 1 mole containing 6.02 x 1023 gas particles. Equal amounts of gases in moles occupy the same volume at the same temperature and pressure conditions.
3. The ideal gas law relates the pressure (P), volume (V), amount of gas (n), temperature (T), and gas constant (R). It can be used to calculate any one variable if the others are known.
Ideal gas law practice mccpot
1) The document discusses the ideal gas law (PV=nRT) and its applications in calculating things like moles of gas, volume at different conditions, density, and molar mass.
2) Key variables in the ideal gas law are defined such as pressure (P), volume (V), moles of gas (n), temperature (T), and the gas constant (R).
3) Standard temperature and pressure conditions are defined as 0°C and 1 atmosphere, where the molar volume of a gas is 22.4 L.
Recommended
Lecture 12 - Gas Mixture
Thermodynamics II course taught at air university Islamabad by Sijal Ahmed.
In this lecture we have discussed about the gas-gas mixtures in general.
3.3 the mole
The document defines key concepts related to the mole including:
- The mole is a unit that represents 6.022x10^23 particles and allows chemists to conveniently work with substances at a macroscopic scale.
- One mole of any substance has a mass in grams numerically equal to its molar mass.
- Common calculations involve determining moles, mass, particles, or volume of a substance using its molar mass and amount in moles.
- The molar volume of a gas is 22.4L at STP allowing for volume calculations.
3.4 chemical formulas
The empirical formula provides the simplest whole number ratio of elements in a compound. It is determined through experimentation involving measuring mass of elements before and after a reaction. The molecular formula indicates the actual number of each type of atom in a molecule of the compound and can be determined from comparing the empirical formula mass to the measured molecular mass. The percentage composition by mass of each element in a compound can be calculated from the empirical formula. Structural formulas depict the specific arrangement of atoms in a molecule.
3.2 gas laws
The document discusses several gas laws:
- Boyle's law states that at constant temperature, the volume of a gas is inversely proportional to its pressure.
- Charles' law states that at constant pressure, the volume of a gas is directly proportional to its kelvin temperature.
- Combined gas law allows calculation of gas properties when temperature and/or pressure change.
It also discusses concepts like the kinetic molecular theory of gases and how real gases deviate from ideal gas behavior due to intermolecular forces and molecular size. Sample calculations demonstrate use of the gas laws and kinetic theory.
3.5 chemical equations
Chemical equations are used to represent chemical changes. They show the reactants and products of a reaction. A balanced chemical equation has the same number and type of atoms of each element on both sides. To balance an equation, the coefficients of the molecules are adjusted without changing subscripts so that atomic balance is achieved. Balanced equations indicate the mole ratios in which substances react, allowing for calculations relating amounts in moles of reactants and products.
Avogadro's law
Avogadro's law states that equal volumes of gases at the same temperature and pressure contain the same number of molecules. It provided a rational explanation for Gay-Lussac's law of combining volumes and indicated that elemental gases like hydrogen and chlorine exist as diatomic molecules. Avogadro's law also established a method for determining molecular weights of gases and helped develop the kinetic molecular theory. According to the law, if the amount of gas is increased or decreased, the volume will change proportionally.
C:\Fakepath\Notes Ii Standard Molar Volume And Iii The Ideal Gas Law
1. The standard molar volume is the volume occupied by 1 mole of an ideal gas at standard temperature and pressure (STP), which is defined as 0°C and 1 atmosphere of pressure. The standard molar volume is 22.4 L.
2. Gases are measured in moles, with 1 mole containing 6.02 x 1023 gas particles. Equal amounts of gases in moles occupy the same volume at the same temperature and pressure conditions.
3. The ideal gas law relates the pressure (P), volume (V), amount of gas (n), temperature (T), and gas constant (R). It can be used to calculate any one variable if the others are known.
Ideal gas law practice mccpot
1) The document discusses the ideal gas law (PV=nRT) and its applications in calculating things like moles of gas, volume at different conditions, density, and molar mass.
2) Key variables in the ideal gas law are defined such as pressure (P), volume (V), moles of gas (n), temperature (T), and the gas constant (R).
3) Standard temperature and pressure conditions are defined as 0°C and 1 atmosphere, where the molar volume of a gas is 22.4 L.
Chemistry - Chp 12 - Stoichiometry - Notes
When 20.0 g of FeS2 reacts with 16.0 g of O2 according to the balanced equation 4FeS2 + 15O2 → 2Fe2O3 + 8SO3:
- O2 is the limiting reagent because it produces the least amount of SO3.
- Using stoichiometry calculations, 16.0 g of O2 can produce 8.0 g of SO3.
- Therefore, the amount of SO3 produced is 8.0 g.
Gas law
The document is the notes from a student, Le Kim Hoang Pham, for an oral exam on gas laws. It covers the key gas properties of pressure, volume, temperature, and amount. It summarizes the empirical gas laws discovered by Boyle, Charles, Gay-Lussac, Avogadro and describes how they relate the gas properties. It also presents the ideal gas law which combines these relationships into a single equation. Finally, it discusses gas mixtures and Dalton's law of partial pressures.
Chemistry edexcel as unit 1 chapter 1 chemical quantities_v0.03
Here are the key steps and observations from the experiment:
- Weigh out 0.56g of iron powder, which is 0.01 moles
- Add to excess copper(II) sulfate solution
- A displacement reaction occurs, producing copper metal
- Filter, wash, dry the copper product
- Weigh the copper produced
- If equation 1 is correct, the mass of copper should be 0.63g (0.01 moles of Cu)
- However, the actual mass obtained is higher, indicating equation 2 is correct
- Equation 2 involves a change in oxidation state of iron from 0 to +3, a redox reaction
So in summary, the experiment shows the reaction involves a redo
Chemistry 107 Exam Prep 2
This document contains an agenda and notes for a chemistry class covering limiting reactants, acids and bases, and gas laws. The agenda includes:
- Limiting reactants
- Acids and bases
- Gas laws
- Questions
The notes provide examples and practice problems for determining limiting reactants, identifying strong and weak acids/bases, calculating neutralization reactions between acids and bases, and applying gas law equations like the ideal gas law, Boyle's law, Charles' law, and Avogadro's principle. Practice problems are included for determining gas properties based on temperature, pressure, volume, moles, and mass.
12.3
The document discusses key concepts relating to gases:
1) The ideal gas law (PV=nRT) relates pressure, volume, amount of gas, temperature using the gas constant R.
2) Gases diffuse from areas of higher to lower concentration until uniformly mixed.
3) Dalton's law of partial pressures states that in a gas mixture, each gas exerts pressure as if alone, and total pressure equals sums of partial pressures.
4) Ratios of gas volumes correspond to mole ratios in chemical equations based on Avogadro's law.
C:\Fakepath\Notes Ii Standard Molar Volume Iii The Ideal Gas Law
The document discusses the standard molar volume of gases and the ideal gas law.
1) The standard molar volume of any gas is 22.4 L at 0°C and 1 atm of pressure (STP).
2) The ideal gas law equation relates the pressure (P), volume (V), amount of gas (n), temperature (T), and gas constant (R). It can be used to calculate any one variable if the others are given.
12 Gas Laws
The document summarizes 12 gas laws including Boyle's law, Charles' law, Avogadro's law, and the ideal gas law. It provides examples of calculations using these laws to determine moles of gas, volumes at different temperatures and pressures, and identities of gases based on density. Key formulas covered are PV=nRT, relationships between volume, pressure and temperature, and stoichiometric calculations using gas volumes.
Stoichiometry
This document provides information about stoichiometry, which is the study of quantities of materials consumed and produced in chemical reactions. It gives examples of how to use mole ratios to calculate masses of reactants and products from a balanced chemical equation. Specifically, it works through examples of calculating grams of aluminum oxide formed from a reaction of aluminum and oxygen, and calculating liters of gases produced from various reactions involving hydrogen, nitrogen, oxygen and potassium chlorate.
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This session will expose you to the new TEKS and College Readiness Standards. Ideas for sequencing and planning the unit will be shared along with tips for appropriate demos, labs, and assessments. The intended audience is for teachers with 3 or less years of experience or anyone who wants to delve deeper into the new standards.
c0301
1. The mole is a unit used to measure very small particles like atoms and molecules and is defined as the number of atoms in exactly 12 grams of carbon-12.
2. One mole contains 6.02 x 10^23 particles and is equal to the substance's molar mass in grams.
3. Only 12g of carbon, 6.02 x 10^23 oxygen atoms, and 22.4L of nitrogen gas are equal to one mole. 1g of hydrogen gas is not equal to one mole.
Gas
- Gases exhibit behaviors described by gas laws such as Boyle's law, Charles' law, and Gay-Lussac's law. The ideal gas law combines several gas laws into a single equation relating pressure, volume, temperature, and moles of gas.
- Real gases deviate from ideal gas behavior due to intermolecular forces and molecular size. The van der Waals equation accounts for these factors.
- Kinetic molecular theory explains gas properties in terms of the high-speed motion and infrequent collisions of molecules separated by large distances.
3 d presentation
This document explains the combined gas law formula and provides an example of how to use it to solve problems involving gas pressure, volume, and temperature.
The combined gas law states that the pressure-volume product of a gas divided by its temperature remains constant. The formula combines Boyle's law, Charles' law, and Gay-Lussac's law.
An example problem applies the formula to calculate the volume of a gas at a new pressure and temperature, given the initial pressure, volume, and temperature. The formula is used and the calculation is shown step-by-step to arrive at the answer.
Tang 04 rate mechanisms
The reaction A + B will proceed faster than the reaction A + B + C because reactions requiring more particles to collide simultaneously have a lower probability of a successful reaction. Overall reactions can occur through a series of elementary steps, with the slowest elementary step determining the overall rate. Catalysts increase reaction rates by lowering the activation energy of the reaction mechanism without being used up.
Balancing Chemical Equations
This material equips the learners on how balancing chemical equation works. This shows the systematic process on how this is done.
23 gases
- Gases have negligible volume and molecules are far apart with mostly empty space between them. Gas molecules move randomly in straight lines and collide elastically.
- The kinetic molecular theory describes gas properties including high translational energy of gas molecules that move randomly in all directions.
- Pressure, volume, temperature of gases are directly or inversely related as described by Boyle's, Charles', and Gay-Lussac's laws and the combined gas law.
Basics of Chemistry: Chemical stoichiometry
This material presents quantitative method of numerical measurements involved in a chemical reaction.
this involves quantities such as the measures of mass in grams and the amount of substance in moles.
I am hoping that this material will help to make the concept easier.
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In the late 18th century, French chemist Antoine Lavoisier recognized the importance of accurate measurements in chemistry. He extensively studied combustion and discovered it involved reaction with oxygen. He also established the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions, though atoms may be rearranged. A chemical equation balances the reactants and products to show equal numbers of each type of atom.
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Tang 06 reaction rate
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Chemistry - Chp 12 - Stoichiometry - Notes
When 20.0 g of FeS2 reacts with 16.0 g of O2 according to the balanced equation 4FeS2 + 15O2 → 2Fe2O3 + 8SO3:
- O2 is the limiting reagent because it produces the least amount of SO3.
- Using stoichiometry calculations, 16.0 g of O2 can produce 8.0 g of SO3.
- Therefore, the amount of SO3 produced is 8.0 g.
Gas law
The document is the notes from a student, Le Kim Hoang Pham, for an oral exam on gas laws. It covers the key gas properties of pressure, volume, temperature, and amount. It summarizes the empirical gas laws discovered by Boyle, Charles, Gay-Lussac, Avogadro and describes how they relate the gas properties. It also presents the ideal gas law which combines these relationships into a single equation. Finally, it discusses gas mixtures and Dalton's law of partial pressures.
Chemistry edexcel as unit 1 chapter 1 chemical quantities_v0.03
Here are the key steps and observations from the experiment:
- Weigh out 0.56g of iron powder, which is 0.01 moles
- Add to excess copper(II) sulfate solution
- A displacement reaction occurs, producing copper metal
- Filter, wash, dry the copper product
- Weigh the copper produced
- If equation 1 is correct, the mass of copper should be 0.63g (0.01 moles of Cu)
- However, the actual mass obtained is higher, indicating equation 2 is correct
- Equation 2 involves a change in oxidation state of iron from 0 to +3, a redox reaction
So in summary, the experiment shows the reaction involves a redo
Chemistry 107 Exam Prep 2
This document contains an agenda and notes for a chemistry class covering limiting reactants, acids and bases, and gas laws. The agenda includes:
- Limiting reactants
- Acids and bases
- Gas laws
- Questions
The notes provide examples and practice problems for determining limiting reactants, identifying strong and weak acids/bases, calculating neutralization reactions between acids and bases, and applying gas law equations like the ideal gas law, Boyle's law, Charles' law, and Avogadro's principle. Practice problems are included for determining gas properties based on temperature, pressure, volume, moles, and mass.
12.3
The document discusses key concepts relating to gases:
1) The ideal gas law (PV=nRT) relates pressure, volume, amount of gas, temperature using the gas constant R.
2) Gases diffuse from areas of higher to lower concentration until uniformly mixed.
3) Dalton's law of partial pressures states that in a gas mixture, each gas exerts pressure as if alone, and total pressure equals sums of partial pressures.
4) Ratios of gas volumes correspond to mole ratios in chemical equations based on Avogadro's law.
C:\Fakepath\Notes Ii Standard Molar Volume Iii The Ideal Gas Law
The document discusses the standard molar volume of gases and the ideal gas law.
1) The standard molar volume of any gas is 22.4 L at 0°C and 1 atm of pressure (STP).
2) The ideal gas law equation relates the pressure (P), volume (V), amount of gas (n), temperature (T), and gas constant (R). It can be used to calculate any one variable if the others are given.
12 Gas Laws
The document summarizes 12 gas laws including Boyle's law, Charles' law, Avogadro's law, and the ideal gas law. It provides examples of calculations using these laws to determine moles of gas, volumes at different temperatures and pressures, and identities of gases based on density. Key formulas covered are PV=nRT, relationships between volume, pressure and temperature, and stoichiometric calculations using gas volumes.
Stoichiometry
This document provides information about stoichiometry, which is the study of quantities of materials consumed and produced in chemical reactions. It gives examples of how to use mole ratios to calculate masses of reactants and products from a balanced chemical equation. Specifically, it works through examples of calculating grams of aluminum oxide formed from a reaction of aluminum and oxygen, and calculating liters of gases produced from various reactions involving hydrogen, nitrogen, oxygen and potassium chlorate.
Attacking The TEKS: Gases
Attacking the TEKS: Focus on Gases presented by Jane Smith, ACT2 2010
This session will expose you to the new TEKS and College Readiness Standards. Ideas for sequencing and planning the unit will be shared along with tips for appropriate demos, labs, and assessments. The intended audience is for teachers with 3 or less years of experience or anyone who wants to delve deeper into the new standards.
c0301
1. The mole is a unit used to measure very small particles like atoms and molecules and is defined as the number of atoms in exactly 12 grams of carbon-12.
2. One mole contains 6.02 x 10^23 particles and is equal to the substance's molar mass in grams.
3. Only 12g of carbon, 6.02 x 10^23 oxygen atoms, and 22.4L of nitrogen gas are equal to one mole. 1g of hydrogen gas is not equal to one mole.
Gas
- Gases exhibit behaviors described by gas laws such as Boyle's law, Charles' law, and Gay-Lussac's law. The ideal gas law combines several gas laws into a single equation relating pressure, volume, temperature, and moles of gas.
- Real gases deviate from ideal gas behavior due to intermolecular forces and molecular size. The van der Waals equation accounts for these factors.
- Kinetic molecular theory explains gas properties in terms of the high-speed motion and infrequent collisions of molecules separated by large distances.
3 d presentation
This document explains the combined gas law formula and provides an example of how to use it to solve problems involving gas pressure, volume, and temperature.
The combined gas law states that the pressure-volume product of a gas divided by its temperature remains constant. The formula combines Boyle's law, Charles' law, and Gay-Lussac's law.
An example problem applies the formula to calculate the volume of a gas at a new pressure and temperature, given the initial pressure, volume, and temperature. The formula is used and the calculation is shown step-by-step to arrive at the answer.
Tang 04 rate mechanisms
The reaction A + B will proceed faster than the reaction A + B + C because reactions requiring more particles to collide simultaneously have a lower probability of a successful reaction. Overall reactions can occur through a series of elementary steps, with the slowest elementary step determining the overall rate. Catalysts increase reaction rates by lowering the activation energy of the reaction mechanism without being used up.
Balancing Chemical Equations
This material equips the learners on how balancing chemical equation works. This shows the systematic process on how this is done.
23 gases
- Gases have negligible volume and molecules are far apart with mostly empty space between them. Gas molecules move randomly in straight lines and collide elastically.
- The kinetic molecular theory describes gas properties including high translational energy of gas molecules that move randomly in all directions.
- Pressure, volume, temperature of gases are directly or inversely related as described by Boyle's, Charles', and Gay-Lussac's laws and the combined gas law.
Basics of Chemistry: Chemical stoichiometry
This material presents quantitative method of numerical measurements involved in a chemical reaction.
this involves quantities such as the measures of mass in grams and the amount of substance in moles.
I am hoping that this material will help to make the concept easier.
Law of conservation of mass 1
In the late 18th century, French chemist Antoine Lavoisier recognized the importance of accurate measurements in chemistry. He extensively studied combustion and discovered it involved reaction with oxygen. He also established the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions, though atoms may be rearranged. A chemical equation balances the reactants and products to show equal numbers of each type of atom.
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This document provides an overview of gas laws and the behavior of gases. It begins by defining the three states of matter and distinguishing properties of gases. Gas pressure and its measurement are then discussed, including common pressure units. The document outlines the major gas laws - Boyle's Law relating pressure and volume at constant temperature, Charles' Law relating volume and temperature at constant pressure, and the Combined Gas Law combining these relationships. Examples are provided to demonstrate applications of the gas laws. The ideal gas law is defined as relating pressure, volume, temperature, and moles of gas. The behavior of gases at standard temperature and pressure is also covered.
Tang 06 reaction rate
The document discusses reaction rates and factors that affect them. It defines reaction rate as how quickly reactants disappear to form products. Five main factors that affect reaction rates are outlined: (1) chemical nature of reactants, (2) surface area, (3) reactant concentration, (4) temperature, and (5) presence of a catalyst. Reaction rates can be quantified using rate laws and rate constants. The order of a reaction is determined experimentally and indicated by the exponents in the rate law equation.
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Chemistry edexcel as unit 1 chapter 1 chemical quantities_v0.03
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C:\Fakepath\Notes Ii Standard Molar Volume Iii The Ideal Gas Law
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This document discusses methods for improving the efficiency of low pressure turbines (LPT) in modern turbofan engines. LPT efficiency directly impacts overall engine efficiency, so increasing LPT efficiency by 1% can increase total engine efficiency by 1%. One way to improve LPT efficiency is to increase the loading on the turbine blades, but beyond a certain point this causes separation of the air from the blade surfaces. Both active and passive methods are used to control this separation, but they have disadvantages like added complexity, losses, and costs. The document proposes studying the effect of wakes from upstream non-axisymmetric vortex generator (NGV) blades on separation in the LPT blades, as these wakes may help control separation more effectively. It valid
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Absract usman t106_a_wake_asmeturboexpo2015_final_sijal
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This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
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CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
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geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
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objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
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ACEP Magazine edition 4th launched on 05.06.2024
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
A review on techniques and modelling methodologies used for checking electrom...
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
Modelagem de um CSTR com reação endotermica.pdf
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Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
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原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
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Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
New techniques for characterising damage in rock slopes.pdf
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Lecture 14 - Gas Mixtures
- 1. THERMODYNAMICS II LECTURE 14 GAS MIXTURES 1
- 2. 2
- 3. 3
- 4. • Apply mass and energy balance to find out mass flow rate of O2 . 4
- 5. • Energy Rate Balance 5
- 6. • Mole Fractions of Dry air and Oxygen: • Part C : Home work 6
- 7. 7