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# Real Gas EOS @model

@wikipedia

Equation of State for the Real Gas:

 (1)

where

 $//$ Gas density $//$ Gas pressure $//$ Gas molar mass $//$ Compressibility factor $//$ Gas temperature $//$ Gas constant

Despite the name it covers a lot of medium-density liquids as well.

## Pure Substances

The
Z-factor $//$ of pure substances is usually modelled through the reduced fluid properties $//$

 $//$ Reduced Temperature $//$ Сritical temperature $//$ Reduced Pressure $//$ Critical pressure

Below is the list of the most popular
Real Gas EOS @models:

Fluid Mixtures

The
Z-factor $//$ of fluid mixtures is usually modelled through the pseudo-reduced fluid properties $//$

 $//$ Reduced Temperature $//$ Pseudo-critical temperature $//$ Reduced Pressure $//$ Pseudo-critical pressure

See Z-factor Correlations @model for the charts, implicit and explicit empirical correlations on fluid mixture Z-factor $//$.