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Thermal Physics

Thermal Physics. Instructor: Prof. Debamalya Banerjee, Department of Physics, IIT Kharagpur. Thermal physics is a course that is designed to fulfill the requirements of first and second year BSc students studying physics. Starting from basic understanding, this course will take the students through all fundamental aspects of thermodynamics in a simple way. The first part of the course deals with the Kinetic theory of gasses, which bridges the connection between macroscopic and microscopic worlds. In here, we have also included transport phenomena involved in ideal gasses, the theory of specific heat and behavior of real gasses. In second half of the course, effort is made to understand the fundamental laws of thermodynamics and applications to various thermodynamic systems and processes.Additionally, a discussion on black body as a thermodynamic system has been included. (from nptel.ac.in)

Lecture 56 - Basic Concepts of Radiation


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Lecture 01 - Foundation of Kinetic Theory of Gasses
Lecture 02 - Maxwell's Law for Speed Distribution of Gas Molecules
Lecture 03 - Average Speeds in an Ideal Gas Assembly
Lecture 04 - Principle of Equipartition of Energy
Lecture 05 - Maxwell's Law for Energy Distribution of Gas Molecules
Lecture 06 - The Mean Free Path of a Gas Assembly
Lecture 07 - Expression for Mean Free Path
Lecture 08 - Experimental Determination of Mean Free Path
Lecture 09 - Pressure and Molecular Flux from Mean Free Path
Lecture 10 - Problems on Mean Free Path
Lecture 11 - Transport in Fluids: Introduction
Lecture 12 - Viscosity: Transport of Momentum
Lecture 13 - Thermal Conductivity: Transport of Thermal Energy
Lecture 14 - Diffusion Coefficient: Transport of Mass
Lecture 15 - Molecular Effusion: Theory and Applications
Lecture 16 - Brownian Motion: Concept, Features, Theory of Fluctuation
Lecture 17 - Brownian Motion: Mean Square Displacement and Vertical Distribution of Particles
Lecture 18 - Perrin's Experiment on Brownian Motion, Part 1
Lecture 19 - Perrin's Experiment on Brownian Motion, Part 2
Lecture 20 - Problems on Brownian Motion, Rotational Brownian Motion
Lecture 21 - Specific Heat of Solids: Dulong Petit Law and Einstein Theory
Lecture 22 - Limitation of Einstein Theory of Specific Heat
Lecture 23 - Debye Theory of Specific Heat
Lecture 24 - Behavior of Real Gasses
Lecture 25 - Van der Waals Equation of State
Lecture 26 - Critical Parameters from Van der Waals Equation
Lecture 27 - Determination of Van der Waals Constants and Boyle Temperature
Lecture 28 - Other Equations of State
Lecture 29 - Measurement of Temperature: Celsius Scale, Ideal Gas Scale, Absolute Zero
Lecture 30 - The Platinum Resistance Thermometer
Lecture 31 - Basic Concepts of Classical Thermodynamics
Lecture 32 - Basic Concepts of Classical Thermodynamics (cont.)
Lecture 33 - First Law of Thermodynamics
Lecture 34 - General Description of Work Done and Specific Heat
Lecture 35 - General Discussion on Heat Conduction and Elastic Properties
Lecture 36 - Cyclic Processes
Lecture 37 - The Reversible Heat Engine: Carnot Cycle
Lecture 38 - Refrigerator and Carnot Theorem
Lecture 39 - The Second Law and Clausius Theorem
Lecture 40 - Concept of Entropy and Mathematical Form of the Second Law
Lecture 41 - The Entropy Principle
Lecture 42 - Efficiency of a Cycle from T-S Diagram
Lecture 43 - The Otto Cycle
Lecture 44 - The Diesel Cycle
Lecture 45 - Entropy and Available Energy
Lecture 46 - Thermodynamic Relations
Lecture 47 - Application of Thermodynamic Relations
Lecture 48 - The Free Energy Functions
Lecture 49 - Condition for Thermodynamic Equilibrium
Lecture 50 - Thermodynamics of Chemical Reaction
Lecture 51 - Equilibrium between Phases: the Clapeyron Equation
Lecture 52 - First Order Phase Transition along Liquid-Vapor Equilibrium
Lecture 53 - Phase Diagram and Triple Point
Lecture 54 - The Second Latent Heat Equation
Lecture 55 - Gibbs Phase Rule and Basics of Second Order Phase Transition
Lecture 56 - Basic Concepts of Radiation
Lecture 57 - Diffused Radiation and Kirchhoff's Law
Lecture 58 - Cavity Radiation as a Thermodynamic System
Lecture 59 - Thermodynamics of Cavity Radiation
Lecture 60 - The Third Law of Thermodynamics