Thermodynamic systems -- State of a system and its transformations -- Ideal or perfect gases -- First law of thermodynamics -- Statement of the first law of thermodynamics -- Application of the first law to systems whose states can be represented on a (V,p) diagram -- Application of the first law to gases -- Adiabatic transformations of a gas -- Second law of thermodynamics -- Statement of the second law of thermodynamics -- Carnot cycle -- Absolute thermodynamic temperature -- Thermal engines -- Entropy -- Some properties of cycles -- Entropy -- Some further properties of the entropy -- Entropy of a system whose states can be represented on a (V,p) diagram -- Clapeyron equation -- Van der Waals equation -- Thermodynamic potentials -- Free energy -- Thermodynamic potential at constant pressure -- Phase rule -- Thermodynamics of the reversible electric cell -- Gaseous reactions -- Chemical equilibria in gases -- Van't Hoff reaction box -- Another proof of the equation of gaseous equilibria -- Discussion of gaseous equilibria ; the principle of Le Chatelier -- Thermodynamics of dilute solutions -- Dilute solutions -- Osmotic pressure -- Chemical equilibria in solutions -- Distribution of a solute between two phases -- Vapor pressure, the boiling point, and the freezing point of a solution -- Entropy constant -- Nernst theorem -- Nernst's theorem applied to solids -- Entropy constant of gases -- Thermal ionization of a gas; thermionic effect --