The correct option is A A→R, B→P, C→S, D→Q
Column -IColumn -II(A)PVγConstant(R)Adibatic reversible process(B)ΔT=0(P)In free expansion(C) ForH2and He atZ>1(S)repulsive forces dominate andZ=1+pbRT at all pressure(D) Low density→low pressure(Q)Z<1,Z=1−aVmRT