Physics - Heat & Thermo Question with Solution | TestHub

One mole of an ideal gas at pressure ${\mathrm{P}}_0$ and temperature ${\mathrm{T}}_0$, volume ${\mathrm{V}}_0$ is expanded isothermally to twice its volume and then compressed at constant pressure to $\left({\mathrm{V}}_0/2\right)$ and the gas is brought to original state by a process in which $\mathrm{P}\propto \mathrm{V}$. The correct representation of the process is