Two carnots engines A and B are operated in series. The first one A re – McqOptions

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1.	Two carnots engines A and B are operated in series. The first one A receives heat at 1200 K and rejects to a reservoir at T and K. The second engine B receives the heat rejected by the first engine and in turn rejects to a heat reservoir at 300 K. Calculate the value of T, when work outputs of the two engines are equal.
A.	600 K
B.	750 K
C.	450 K
D.	900 K
Answer» C. 450 K

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