A real gas at a very high pressure occupies

When the pressure is high, volume would be small. So, excluded volume ‘b’ cannot be ignored. But as the pressure is high, the quantity aV2 may be neglected in comparison with P. So the van der Waals equation reduces toPV-b=RT PV-Pb=RT V=RTP+b i.e.,      Vreal = Videal + b ∴        Vreal > Videal