The P-V diagram of an engine is shown in the figure below. The temperatures at points 1, 2, 3 and 4 are T1, T2, T3 and T4, respectively. 1โ2 and 3โ4 are adiabatic processes, and 2โ3 and 4โ1 are isochoric processes
Identify the correct statement(s).
[ฮณ is the ratio of specific heats Cp (at constant P) and Cv (at constant V)]