Utkal University, Odisha, Physics Semester 3, Thermal Physics Syllabus

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Unit - 1 Introduction To Thermodynamics

Unit 1

Introduction to thermodynamics

1.1 Introduction to thermodynamics recapitulation of zeroth and first law of thermodynamics

1.2 Second Law of Thermodynamics Reversible and Irreversible process with examples KelvinPlanck and Clausius Statements and their Equivalence

1.3 Carnots Theorem

1.4 Applications of Second Law of Thermodynamics Thermodynamic Scale of Temperature and its Equivalence to Perfect Gas Scale

1.5 Entropy Concept of Entropy

1.6 Clausius Theorem Clausius Inequality

1.7 Second Law of Thermodynamics in terms of Entropy

1.8 Entropy of a perfect gas

1.9 Principle of increase of Entropy

1.10 Entropy Changes in Reversible and Irreversible processes with examples Entropy of the Principle of Increase of Entropy

1.11 Temperature Entropy diagrams for Carnot’s Cycle

1.12 Third Law of Thermodynamics Unattainability of Absolute Zero

Unit - 2 Thermodynamic Potentials

Unit 2

Thermodynamic Potentials

2.1 Extensive and Intensive Thermodynamic Variables

2.2 Thermodynamic Potentials Internal Energy Enthalpy Helmholtz Free Energy Gibbs Free Energy Their Definitions Properties and Applications

2.3 Surface Films and Variation of Surface Tension with Temperature Magnetic Work

2.4 Cooling due to adiabatic demagnetization

2.5 Phase Transitions First and second order Phase Transitions with examples

2.6 Clausius Clapeyron Equation and Ehrenfest equations

2.7 Maxwell’s Thermodynamic Relations Derivations and applications of Maxwell’s Relations

2.8 Maxwell’s Relations 1 Clausius Clapeyron equation 2 Relation between Cp and Cv 3 TdS Equations 4 JouleKelvin coefficient for Ideal and Van der Waal Gases 5 Energy equations 6 Change of Temperature during Adiabatic Process

Unit - 3 Kinetic Theory Of Gases

Unit 3

Kinetic Theory of Gases

3.1 Distribution of Velocities MaxwellBoltzmann Law of Distribution of Velocities in an Ideal Gas and its Experimental Verification

3.2 Sterns Experiment

3.3 Mean RMS and Most Probable Speeds

3.4 Degrees of Freedom

3.5 Law of Equipartition of Energy No proof required

3.6 Specific heats of Gases

3.7 Molecular Collisions Mean Free Path Collision Probability Estimates of Mean Free Path

3.8 Transport Phenomenon in Ideal Gases 1 Viscosity 2 Thermal Conductivity and 3 Diffusion

3.9 Brownian Motion and its Significance

Unit - 4 Real Gases

Unit 4

Real Gases

4.1 Behavior of Real Gases Deviations from the Ideal Gas Equation

4.2 The Virial Equation

4.3 Andrews Experiments on CO2 Gas Critical Constants

4.4 Continuity of Liquid and Gaseous State Vapour and Gas

4.5 Boyle Temperature

4.6 Van der Waals Equation of State for Real Gases Values of Critical Constants

4.7 Law of Corresponding States Comparison with Experimental Curves

4.8 PV Diagrams

4.9 Joules Experiment

4.10 Free Adiabatic Expansion of a Perfect Gas

4.11 Joule Thomson Porous Plug Experiment Joule Thomson Effect for Real and Van der Waal Gases Temperature of Inversion

4.12 JouleThomson Cooling

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