Physics - Heat & Thermo Question with Solution | TestHub

When a system is taken from state $i$ to state $f$ along the path $\mathrm{iaf}$, it is found that $Q=50\mathrm{cal}$ and $\mathrm{W}=20\mathrm{cal}$. Along the path' $\mathrm{ibf}$ $\mathrm{Q}=36\mathrm{cal}$. $\mathrm{W}$ along the path $\mathrm{ibf}$ is