facteur de compressibilité meaning in English

compressibility factor

The compressibility factor at the critical point, which is defined as Z c = p c V c n c k B T c {\displaystyle Z_{c}={\frac {p_{c}V_{c}}{n_{c}k_{B}T_{c}}}} , where the subscript c {\displaystyle c} indicates the critical point, is predicted to be a constant independent of substance by many equations of state; the Van der Waals equation e.g. predicts a value of 3 / 8 = 0.375 {\displaystyle 3/8=0.375} .
Le facteur de compressibilité au point critique, défini par Z c = P c V c n R T c