In Vander Waal's gas equation (P + (2)/(V^(2))) (V-b) = RT. Determine the dimensions of a and b.

In Vander Waal's gas equation (P + (2)/(V^(2))) (V-b) = RT. Determine

1.	In Vander Waal's gas equation (P + (2)/(V^(2))) (V-b) = RT. Determine the dimensions of a and b.
Answer» <P> SOLUTION :Since DIMENSIONALLY similar quantities can only be ADDED `[P] [(a)/(V^(2))] rArr [a] = [PV^(2)] = [M^(1)L^(5)//T^(-2)]` [b] = [V] = `[L^(3)]` .