A thermodynamic equation relating state variables in thermodynamic equilibrium which describe the state of matter under a given set of physical conditions, such as pressure , density (or compressibility factor ), temperature or internal energy and chemical structure.

It usually takes following forms:

\rho = \rho (p,T)

Z = Z(p,T)

p = p(\rho,T)

See also

Natural Science / Physics / Thermodynamics

[ State of matter ] [ PVT ]

[ Ideal Gas EOS ] [ Real Gas EOS ]

[ PVT EOS @model ]