As, AB is isothermal process, so work done by isothermal process is given by ‌WAB=nRT‌ln(‌
V2
V1
) ‌WAB=nRT‌ln(‌
2V1
V1
)=nRT‌ln‌2 As, BC is isobaric process, so work done by isobaric process is given by WBC‌‌=p∆V=p2(V1−V2) ‌‌=p2(‌
V2
2
−V2)=−‌
p2V2
2
‌‌=‌
−nRT
2
As, CA is isochoric process, so work done by isochoric process is given by, WCA=0‌‌[∵∆V=0] Total work done in the cycle ABCA, WABCA‌‌=WAB+WBC+WCA ‌‌=nRT‌ln‌2+(‌