Thermal capacities of real fluids
Thermal capacities of organic compounds

In principle, knowledge of a fluid's equation of state enables us to determine the deviation of its thermodynamic properties (residual quantities) from the perfect state as a function of temperature and pressure.

with the exponent ^• standing for perfect gas,

where R stands for residual.

The principle behind this type of calculation is briefly explained in the article Calcul des constantes thermodynamiques ([K 540]).

The Corresponding States method is described in detail in the article Thermodynamic data of fluids (). The residual thermodynamic properties are tabulated in terms of the reduced coordinates T⁺ and P⁺ :