Leonard Susskind reviews the Lagrange multiplier, explains Boltzmann distribution and Helmholtz free energy before oulining into the theory of fluctuations.
Leonard Susskind explains how to calculate and define pressure, explores the formulas some of applications of Helmholtz free energy, and discusses the importance of the partition function.
Leonard Susskind discusses the basic physics of the diatomic molecule and why you don't have to worry about its structure at low temperature. Susskind later explores a black hole thermodynamics.
Leonard Susskind lectures on harmonic oscillators, quantum states, boxes of radiation and all associated computations such as wavelengths, volume, energy and temperature.
Leonard Susskind lectures on a new class of systems, magnetic systems. He goes on to talk about mean field approximations of molecules in multidimensional lattice systems.