Unit 3 S ECOND LAW OF THERMODYNAMICS ,Limitations of the first law of thermodynamics:,Concepts of heat engines and heat pumps/refrigerators ,Kelvin-Planck and Clausius statements and their equivalence,Reversible and irreversible processes ,Carnot cycle and Carnot principles/theorems ,Thermodynamic temperature scale ,Clausius inequality and concept of entropy ,Microscopic interpretation of entropy ,The principle of increase of entropy ,T-s diagrams ,Second law analysis of control volume ,Availabi...