Basic Terminology,Heat, energy and work, Internal Energy (E or U),First Law of Thermodynamics, Enthalpy,Molar heat capacity, Heat capacity,Specific heat capacity,Enthalpies of Reactions,Hess’s Law of constant heat summation,Born–Haber Cycle,Lattice energy,Second law of thermodynamics, Gibbs free energy(ΔG),Bond Energies,Efficiency of a heat engine
Chemical equilibrium is about reversible reaction, how equilibrium set up n physical and chemical processes,equilibrium constant, its application and Le Chatlier's principle and factors altering the composition of equilibrium
a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
Implication of Nernst's Heat Theorem and Its application to deduce III law of thermodynamics and Determination of absolute entropies of perfectly crystalline solids using III law of thermodynamics
Chemical equilibrium is about reversible reaction, how equilibrium set up n physical and chemical processes,equilibrium constant, its application and Le Chatlier's principle and factors altering the composition of equilibrium
a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
Implication of Nernst's Heat Theorem and Its application to deduce III law of thermodynamics and Determination of absolute entropies of perfectly crystalline solids using III law of thermodynamics
Partial gibbs free energy and gibbs duhem equationSunny Chauhan
Partial gibbs free energy and gibbs duhem equation,relation between binary solution,relation between partiaL properties,PARTIAL PROPERTIES,PARTIAL PROPERTIES IN BINARY SOLUTION,RELATIONS AMONG PARTIAL PROPERTIES,Maxwell relation,Examples
This is a talk I did for the IED and APG in Madrid in May 2010.
It's a thought piece exploring the energy/effort exchange when marketers attempt to create behavioural change. I don't think I come to any tight conclusions, but I hope it's good food for thought.
I've also had to hack it a bit to make it make sense without me talking. Hope it works.
Thermodynamic laws describe the flows and interchanges of heat, energy and matter.
Almost all chemical and biochemical processes are as a result of transformation of energy.
Laws can provide important insights into metabolism and bioenergetics.
The energy exchanges between the system and the surroundings balance each other.
There is a hierarchy of energetics among organisms
System and its types, chemical thermodynamics, thermodynamics, first law of thermodynamics, enthalpy, internal energy, standard enthalpy of combustion, formation, atomization, phase transition, ionization, solution and dilution,second law of thermodynamics, gibbs energy change, spontaneous and non-spontaneous process, third law of thermodynamics
Treatment of water for domestic use,Screening,Sedimentation,Co-agulation,Filtration,Disinfection of water,Water softening
Permutit Process,Ion exchange method,Mixed bed Dimneralisation process, Lime- Soda process ,Desalination
RO Method, Electrodialysis
p-BLOCK ELEMENTS,Boron Family (Group 13 Elements )
Compounds of Boron,Orthoboric acid (H3BO3),Borax (sodium tetraborate) Na2B4O7. 10H2O,Diborane,Compounds of Aluminium,Aluminium Oxide or Alumina (Al2O3),
Aluminum Chloride AlCl3,Carbon Family (Group 14 Elements):
Compounds of Carbon,Carbon Monoxide,Carbon di-oxide,
Carbides, Nitrogen Family (Group 15 Elements),
Ammonia (NH3),Phosphorus,Phosphorous Halides,Oxides of Phosphorus,Oxy – Acids of Phosphorus,Oxygen Family (Group 16 Elements) , Allotropes of Sulphur,Halogen Family ( Group 17 Elements,Inter halogen compounds,
Hydrogen Halides,Pseudohalide ions and pseudohalogens,Some important stable compound of Xenon
Modern Periodic Law,Classification of Elements, Periodicity in Atomic Properties,Atomic Radius, Ionisation potential or Ionisation Energy,Electron Affinity
Electrochemistry,Electrolytic and Metallic Conduction,Specific Resistance or resistivity (ρ),Specific Conductance or Conductivity (κ),Equivalent Conductance (Λ), Molar Conductance (Λm),Variation of Conductance with Dilution,Debye-Hückel-Onsager Equation,Kohlransch’s Law of Independent Migration of Ions,Faraday’s Laws of Electrolysis,Electrochemical Cells,The Nernst Equation,Oxidation Number
Oxidation Number / State Method For Balancing Redox Reactions,Half-Reaction or Ion-Electron Method For Balancing Redox Reactions,Half-Reaction or Ion-Electron Method For Balancing Redox Reactions,Common Oxidising and Reducing Agents
Sources of Water, Hardness of Water, Determination of Hardness of Water by EDTA method, Alkalinity of water, Scale and Sludge formation, Boiler Corrosion, Priming , Foaming, Caustic Embrittlement
Rate of reaction,Order of Reaction,Molecularity of Reaction,Zero Order Reactions,First Order Reactions, Half life of reactuion ,Sequential Reactions,Arrhenius Equation,Temperature Coefficient,Collision Theory of Reaction Rate,Radioactivity
STRUCTURE OF ATOM
Sub atomic Particles
Atomic Models
Atomic spectrum of hydrogen atom:
Photoelectric effect
Planck’s quantum theory
Heisenberg’s uncertainty principle
Quantum Numbers
Rules for filling of electrons in various orbitals
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
2. Terms Explanation
System Part of the universe under investigation.
Open System A system which can exchange both energy and matter with its surroundings.
Closed System A system which permits passage of energy but not mass, across its boundary.
Isolated system A system which can neither exchange energy nor matter with its surrounding.
Surroundings Part of the universe other than system, which can interact with it.
Boundary Anything which separates system from surrounding.
State variables The variables which are required to be defined in order to define state of any system i.e.
pressure, volume, mass, temperature, surface area, etc.
State Functions Property of system which depend only on the state of the system and not on the path.
Example: Pressure, volume, temperature, internal energy, enthalpy, entropy etc.
Intensive properties Properties of a system which do not depend on mass of the system i.e. temperature, pressure,
density, concentration,
Extensive properties Properties of a system which depend on mass of the system i.e. volume, energy, enthalpy,
entropy etc.
Process Path along which state of a system changes.
Isothermal process Process which takes place at constant temperature
Isobaric process Process which takes place at constant pressure
Isochoric process Process which takes place at constant volume.
Adiabatic process Process during which transfer of heat cannot take place between system and surrounding.
Cyclic process Process in which system comes back to its initial state after undergoing series of changes.
Reversible process Process during which the system always departs infinitesimally from the state of equilibrium
i.e. its direction can be reversed at any moment.
Irriversible Process This type of process is fast and gets completed in a single step. This process cannot be
reversed. All the natural processes are of this type
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Basic Terminology:
3. Heat, energy and work:
Heat (Q):
Energy is exchanged between system and surround in the form of heat when they are at different
temperatures.
Heat added to a system is given by a positive sign, whereas heat extracted from a system is given negative
sign.
It is an extensive property. It is not a state function.
Energy:
It is the capacity for doing work.
Energy is an extensive property.
Unit : Joule.
Work (W):
Work = Force × Displacement i.e. dW = Fdx
Work done on the system is given by positive sigh while work done by the system is given negative sign.
Mechanical Work or Pressure-Volume Work: work associated with change in volume of a system against an
external pressure.
Work done in reversible process :
W =
or W = – 2.303 nRT log v2/v1 = –2.303 nRT log p1/p2
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4. Internal Energy (E or U):
Sum of all the possible types of energy present in the system.
ΔE = heat change for a reaction taking place at constant temperature and volume.
ΔE is a state function. It is an extensive property.
Value of ΔE is -ve for exothermic reactions while it is +ve for endothermic reactions.
First Law of Thermodynamics:
Energy can neither be created nor destroyed although it can be converted from one form to another or Energy of an isolated
system is constant.
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5. Mathematical Expression
Heat observed by the system = its internal energy + work done by the system.
i.e. q = dE + w
For an infinitesimal process dq = dE + dw
Where, q is the heat supplied to the system and w is the work done on the system.
For an ideal gas undergoing isothermal change ΔE =0 so q= -w.
For an isolated system, dq=0, so, dE = - dw
For system involving mechanical work only , ΔE = q – pdV
At constant volume i.e. isochoric process, ΔE = qv
For Isothermal Process ΔE = 0 or q = - pdV =-W
For adiabatic process q = 0 or ΔE = W
Enthalpy (H): H = E+PV
At constant pressure: dH = dE + pdV
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6. For system involving mechanical work only dH = QP (At constant pressure)
For exothermic reactions dH = -ve
For endothermic reactions dH = +ve
Relation between dH and dE:
dH = dE + dng RT
Where, dng = (Number of moles of gaseous products - Number of moles of gaseous reactants)
Heat capacity: Amount of heat required to rise temperature of the system by one degree.
C = q / dT
Specific heat capacity: Heat required to raise the temperature of 1 g of a substance by one degree.
Cs = Heat capacity / Mass in grams
Molar heat capacity: Heat required to raise the temperature of 1 g of a substance by one degree.
Cm = Heat capacity / Molar mass.
Heat capacity of system at constant volume:
Cv = (dE/dT)v
Heat capacity of system at constant pressure:
Cp = (dE/dT)p Cp – Cv = R
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7. Variation Of Heat Of Reaction With Temperature:
dCP = (dH2 - dH1)/(T2-T1) & dCV = (dE2 - dE1)/(T2-T1
Bomb Calorimeter:
Heat exchange = Z × ΔT
Z–Heat capacity of calorimeter system , ΔT– Rise in temp.
Heat changes at constant volumes are expressed in ΔE and
Heat changes at constant pressure are expressed in dH.
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8. Enthalpies of Reactions:
Enthalpies Definitions Example
Enthalpy of
Formation
Enthalpy change when one mole of a given compound
is formed from its elements
H2(g) + 1/2O2(g) → 2H2O(l),
ΔfH = –890.36 kJ / mol
Enthalpy of
Combustion
Enthalpy change when one mole of a substance is burnt
in oxygen.
CH4 + 2O2(g) →CO2 + 2H2O(l),
ΔcombH = –890.36 kJ / mol
Enthalpy of
Neutralization
Enthalpy change when one equivalent of an acid is
neutralized by a base in dilute solution.
H+ (aq) + OH– (aq) → H2O(l)
ΔneutH = –13.7 kc
Enthalpy of
Hydration
Enthalpy change when a salt combines with the
required number of moles of water to form
specific hydrate.
CuSO4(s) + 5H2O (l) → CuSO45H2O,
ΔhydH° = –18.69 kcal
Enthalpy of
Transition
Enthalpy change when one mole of a substance is
transformed from one allotropic form to another
allotropic form.
C (graphite) → C(diamond), ΔtransH° = 1.9
kJ/mol
Enthalpy of
Sublimation
Enthalpy change when one mole of a solid substance
sublime at constant temp. and 1 bar pressure
CO2(S) → CO2(g)
ΔtfusH° = 6.00 kJ/mol
Enthalpy of fusion Enthalpy change when one mole of a solid melts H2O(S) → H2O (l)
ΔtsubH° = 73.00 kJ/mol
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9. The total enthalpy change of a reaction is the same, regardless of
whether the reaction is completed in one step or in several steps.
According to Hess’s law: ΔH = ΔH1 + ΔH2
Born–Haber Cycle:
Applying Hess’s law we get
ΔH1 + 1/2 ΔH2 + ΔH3 + ΔH4 + ΔH5 = ΔHf (MX) (Lattice energy)
Lattice energy:
The change in enthalpy that occurs when 1 mole of a solid crystalline substance is formed from its
gaseous ions.
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Hess’s Law of constant heat summation:
10. Second law of thermodynamics
It is impossible to take heat from a hot reservoir and convert it completely into work by a cyclic process
without transferring a part of it to a cold reservoirs.
Mathematically:
ΔS = qrev/ T Where, ΔS is entropy change.
Entropy is the degree of randomness thus it increases with increase in randomness of particles of the
system i.e. ΔS is positive for melting of ice.
At equilibrium, ΔS = 0
For a spontaneous process, ΔS > 0
Entropy change in an isothermal reversible expansion of a gas
Spontaneous Processes: These type of physical and chemical changes occur of its own under
specific circumstances or on proper initiations. For example: Flow of liquids from higher to lower
level.
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11. Gibbs free energy(ΔG):
ΔG = ΔH - TΔS
ΔG = nRT ln Keq
ΔG = nFEcell
At equilibrium, ΔG = 0 For spontaneous process, ΔG < 0
Bond Energies: Average amount of energy required to break one mole bonds of that type in gaseous
molecules.
H–OH(g) → 2H(g) + ½O(g) ΔH = 498 kJ
O–H(g) → H2(g) + ½O2 (g) ΔH = 430 Kj
ΔHO–H = (498 + 430)/2 = 464 kJ mol–1
Efficiency of a heat engine (carnot cycle):
W = R (T2 – T1) ln v2/v1
q2 = RT2 ln v2/v1 W = q2
Efficiency (h) h =
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