Thermodynamics: Concept of entropy, reversible and irreversible processes, Clausius inequality, Free energies, Criteria of spontaneity. Fundamental equations for open systems, Partial molar quantities and chemical potential, Gibbs-Duhem equation, Real gases and fugacity. Thermodynamics of ideal and non-ideal solutions: Liquid-liquid solutions, liquid-solid solutions, multicomponent systems and excess thermodynamic properties, Activity of ideal, regular and ionic solutions. Strong electrolytes, Debye-Huckel limiting law and its extensions, activity coefficients and ionic strength, Applications of Debye-Huckel Theory. Thermodynamic equation of state. Phase behavior of one and two component systems, Ehrenfest classification of phase transitions. Statistical Thermodynamics: Concept of ensembles, Canonical ensemble, Boltzmann distribution, Thermodynamic quantities and canonical partition function. Grand canonical ensemble, Fermi-Dirac and Bose-Einstein distributions. Molecular partition functions, Translational, r