Q 15. The following four figures have been drawn to represent a fictitious thermodynamic cycle, on the p-v and T – s planes.
According to the first law of thermodynamics, equal areas are enclosed by
(A) Figures 1 and 2
(B) Figures 1 and 3
(C) Figures 1 and 4
(D) Figures 2 and 3
Answer: (A)
Explanation:
