1) One mole of a monoatomic ideal gas is taken along two cyclic processes E→ F→ G→ E and E→F→ H→ E as shown in the p-V diagram. The processes involved are purely isochoric, isobaric, isothermal or adiabatic. Match the paths in List I with the magnitudes of the work done in List II and select the correct answer using the codes given below the lists. A) P:4,Q:3,R:2,S:1 B) P:4,Q:3, R:1, S:2 C) P:3, Q:1, R:2, S:4 D) P:1,Q:3,R:2, S:4 Answer: Option AExplanation: in F→ G work done in isothermal process is nRTln(VfVi)=32p0V0ln(32V0V0) =32p0V0ln25=160p0V0ln2 InG→E,△W=p0△V=p0(31V0)=31p0V0 In G → H , work done is less than 31 p0V0 , i.e, 24 p0V0 In F → H workdone is 36 p0V0