railway Gujarat Metro SCTO Mock Test 2023 Thermodynamics Second Law of Thermodynamics and Entropy Carnot's Theorem and its Corollary
Two Carnot engines A and B are operated in series. The first one, A receives heat at T1 = 650 K and rejects to a reservoir at temperature T2. The second engine B receives heat rejected by the first engine and, in turn, rejects to a heat reservoir at T3 = 300 K. Calculate the temperature T2 if the work outputs of the two engines are equal:
1
550 K
2
375 K
3
670 K
4
475 K