Peng-Robinson and Redlich-Kwong-Soave Equations of State
The properties for many pure fluids are built into EES. However, EES can also provide property information using the non-dimensional forms of the Peng-Robinson and Redlich-Kwong-Soave equations of state, which can be applied for both pure fluids and mixtures.
Peng-Robinson Property Library
Redlich-Kwong-Soave Property Library