Topics: Chemical Thermodynamics, mechanical systems equilibrium, perfect gas, energy, work, heat, temperature, temperature measurement, molecular motion, energy conservation, enthalpy, heat capacity, entropy, equilibrium, free energy, Gibbs free energy, phase equilibria, Clapeyron equation, Clausius-Clapeyron equation, chemical potential, Le Chatelier's principle, Hess's law, free-energy changes determination, Ellingham diagram, free-energy functions, ideal solution, ideal dilute solution, freezing-point depression, osmotic pressure, solid solubility, electrochemical cells, standard electrode potentials, irreversible expansion, Joule-Thomson experiment, imperfect gases, energy levels, Boltzmann factor, rotational partition function, vibrational partition function, chemical equilibrium