Thermodynamics: Second Principle

This lecture covers the second principle of thermodynamics, focusing on irreversible transformations, internal entropy creation, and entropy increase of a system at a given temperature due to heat transfer. It also discusses the formulation of the second principle, consequences of irreversibility, and reciprocal relationships obtained from entropy and enthalpy. Additionally, it explores Gibbs relations, sound speed in isentropic transformations, and entropy variations with reciprocity relations and specific heats.