Question

vander wall equation​

Answer 1

The van der Waals equation of state approaches the ideal gas law PV=nRT as the values of these constants approach zero. The constant a provides a correction for the intermolecular forces. Constant b is a correction for finite molecular size and its value is the volume of one mole of the atoms or molecules.

Answer 2

(P+a/V²m)(Vm-b)=RT is the vander wall equation