Van der Waals law of corresponding states
= Van der Waals law of corresponding states
{c}
The <Van der Waals equation> becomes independent of its material parameters when <pressure>, <temperature> and molecular <volume> are divided by their critical values: $\bar p=8\bar T/(3\bar v-1)-3/\bar v^2$. This explains the common reduced isotherms within this model, without claiming exact agreement for all real fluids.