Physics - Heat & Thermo Question with Solution | TestHub

$T_A=T_B=\frac{P_0{V}_0}{2nR}$ and $T_C=\frac{P_0{V}_0}{nR}$. A-B: along the straight line $PV$ peaks at the midpoint $\left(0.5625P_0{V}_0\right)$, so $T$ first rises then falls (R). B-C is isobaric expansion: $T$ rises continuously (P). C-A is isochoric pressure drop: $T$ falls continuously (Q).