The pressure p of a system of n particles con- tained in a volume v at a temperature t is given by p = nkpt-zan*+ bns where n is the number density and a and b

The pressure P of a system of N particles con- tained in a volume V at a temperature T is given by P = nkpT-zan*+ bns where n is the number density and a and b are tempera ture independent constants. lf the system ex- hibits a gas-liquid transition, the critical tem- perature is (NET June 18) (a) a/bkB a/kB Ans =C (b) a/20kB (c) a/2bkB (d)