The Vander waal’s equation for a gas is $\left(\text{p}+\frac{\text{a}}{{\text{v}}^{\text{2}}}\right)\left(\text{v}-\text{b}\right)=\text{nRT}$where P, V, R, T and n

            represent the  pressure, volume, universal gas constant, absolute temperature and number of

            moles of a gas respectively. a and b are constants, the ratio $\text{b/a}$ will have the following

            dimensional formula