7.6.4.2.21. General_Ideal_Gas

Syntax: Density [{of} SpeciesName] = General_Ideal_Gas (R = r | [Pref = pref] | [Poffset = poffset])
Scope: Aria Material
Summary: General ideal gas density
Description: $\rho = \frac{P \mathit{MW}_\text{mix}}{R T}$

where $P$ is either the $P_\text{ref}$ parameter if provided, or the pressure added to the $P_\text{offset}$ parameter. $\mathit{MW}_\text{mix}$ is the mixture molecular weight, $R$ the provided gas constant, and $T$ the temperature.