Compressibility Factor

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Compressibility factor, abbreviated as z, a dimensionless number, also called compression factor or gas deviation factor, corrects for deviation from the ideal gas law to account for the real gases behavior.


Compressibility Factor formula

\(\large{  z = \frac{ p \; V }{ n \; R \; T }   }\)   


\(\large{ z }\) = compressibility factor for a given gas

\(\large{ n }\) = number of moles of gas

\(\large{ p }\) = pressure of gas

\(\large{ R }\) = specific gas constant (gas constant)

\(\large{ T }\) = temperature of gas

\(\large{ V }\) = volume of gas


Tags: Equations for Gas Equations for Ideal Gas