Equation of State

Ideal Gas Law

The gas-phase density is calculated using the ideal gas law, which describes the relationship between pressure, temperature, and molar concentration:

C=PRTC = \frac{P}{R T}
SymbolDescriptionUnit
CCGas molar concentrationmol m⁻³
TTTemperatureK
PPPressurePa
RRIdeal gas constantJ mol⁻¹ K⁻¹