For a real gas following vander waal equation is obtained `P(V_m-b) =RT and `((deltaZ)/(deltaP))_T = (xb)/(RT)`. Then find value of X

In Vander Waal's equation (P+(a)/(V^(2)))(V-b)=RT ,dimensions of a would be

At low pressures, the van der Waal's equation is written as [P + (a)/(V^(2))] V = RT The compressiblity factor is then equal to

At low pressures (for 1 mole), the van der Waal's equation is written as [P+(a)/(V^(2))]V=RT The compressibility factor is then equal to :