Properties of substances, usual charts, States of matter, Saturation curves, Fluid models, Ideal gas model, Ideal gas equation of state, Dalton's law, Practical determination of the state of a perfect gas, Practical determination of the state of an ideal gas, Practical determination of the state of an ideal gas, Isentropes, Entropy chart (T,s) , Ideal gas entropy chart (T,s), Properties of real fluids, Liquid-vapor equilibrium, Vapor entropy chart (T,s),Butane (T,s) chart, Water (T,s) chart, (h,ln(P)) chart, R134a (h,ln(P)) chart, Ammonia (h,ln(P)) chart