The above P - V diagram represents the thermodynamic cycle of an engine, operating with an ideal mono-atomic gas. The amount of heat, extracted from the source in a single cycle, is:

Step-by-step solution

The heat is extracted from the source during the process A → B   and   B → C ∆ Q A B + ∆ Q B C = n C v d T + n C p d T = 3 2 P 0 V 0 + 5 2 2 P 0 V 0 = 1 3 2 P 0 V 0