Question

$P-T$ diagram is shown below, then choose the corresponding $V-T$ diagram:

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

Process $\text{AB}$ is isothermal so, on $V-T$ curve also, it will remain a vertical straight line. Process $\text{BC}$ is isochoric (as it is a straight line passing through the origin) hence, on $V-T$ curve it will be a horizontal straight line. And process $\text{CD}$ is again isothermal, so it will be a vertical straight line on $V-T$ curve. Hence, the curve will look like