Physics - Heat & Thermo Question with Solution | TestHub

$$\begin{array}{rl}\text{ Net work done in a cycle }& =W_{AB}+W_{BC}+W_{CB}+W_{BA}\\ & =400R+2\times 2.303\times 500R\ln 2-400R-414R\\ & =1000R\times \ln 2-600R\times \ln 2=400R\times \ln 2=276R\end{array}$$