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Thermodynamics
Paper Code:
CHY - 223
Credits:
4
Contact Hours:
60.00
Max. Marks:
100.00
Objective:
To learn the fundamentals of thermodynamics and to describe thermodynamics at a molecular level and apply the concepts for the study of equilibrium reactions and reaction rates.
10.00
Unit I:
Classical Thermodynamics
Pre requisite: Laws of thermodynamics, free energy, chemical potential and entropies.
Therodynamics of open system: Partial molar properties and their significance, chemical potential , Gibbs- Duhem equation , variation of chemical potential with temperature and pressure , chemical potential in a system of ideal gases, Clasius-Clapeyron equation and its application, fugacity and activity, determination of fugacity , the concept of activity and activity coefficient.
13.00
Unit II:
Introduction to Statistical Thermodynamics
Quantum mechanical aspects: introduction, thermodynamic probability and most probable distribution, , common terms- canonical ensemble, occupation number, statistical weight factor, configuration, phase space, macroscopic state, microscopic state, system, assembly and ensemble and its types; Ensemble averaging and its postulates, statistical equlibrim, Boltzmann distribution law, type of statistics, Bose-Einstein statistics and Fermi-Dirac statistics - distribution. Applications of statistics to Helium, photon gas and metals.
12.00
Unit III:
Partition Function
Molecular partition function for an ideal gas, translational partition function, rotational partition function, vibrational partition function, electronic partition function, nuclear partition function, translational energy of the gas, translational entropy of a monoatomic gas, translational enthalpy, translational heat capacity, translational helmholtz function.
13.00
Unit IV:
Statistical Approach to Thermodynamics Properties and Entropy
Equilibrium constant, equipartition principle, heat capacity of mono and diatomic gases, o and p- hydrogen and mixture of the two ring o-hydrogen and p-hydrogen heat capacity of solids.
Entropy, probability, Boltzmannn-planck equation, significance of thermodynamics probability, entropy of expansion of ideal gas, molecular basis of residual entropy, statistical calculation of entropy, vibrational entropy, nuclear spin entropy, virtual entropy, rotational entropy, comparison of third law and statistical entropies, random orientation in the solids, entropy of hydrogen and deuterium.
12.00
Unit V:
Non-Equilibrium Thermodynamics
Thermodynamic criteria for non equilibrium states, entropy production and entropy flow, entropy balance equations for different irreversible processes (heat flow, chemical reaction etc.), transformations of the generalized fluxes and forces, non equilibrium stationary states, phenomenological equations, microscopic reversibility and Onsager’s reciprocity relations, electrokinetic phenomena, diffusion and electric conduction.
Essential Readings:
- An Introduction to Chemical Thermodynamics, Sixth Revised Edition; R.P Rastogi and R.R Misra; Vikas publishing, Pvt Ltd. New Delhi, 1995.
- Thermodynamics For Students Of Chemistry, Second Edition; K.Rajaram and J.C Kuriacose; S.L.N Chand and Company, Jalandhar.
- Chemical thermodynamics, Fourth Edition; I.M Klotz and R.M Rosenberg; W.A Benzamin Publishers, California.
- Statistical thermodynamics, Second Edition; M.C Gupta; New Age International Pvt Ltd., New Delhi, 1995.
- Fundamentals of Physical Chemistry; S.H Maron and J.B Lando; MacMillan Publishers, Newyork.
- Physical Chemistry, A Molecular Approach, First Edition; D.A. Mc Qurrie and J.D Simon; Viva Low Priced Student Edition, New Delhi, 1998.
- Thermodynamics for Chemists, Third Edition; Samuel Glasston; Affiliated East -West Press Pvt. Ltd., New Delhi, 1999.
Academic Year:
