1.

_One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to$?

A. 800 K
B. 1000 K
C. 1200 K
D. 1400 K
Answer» B. 1000 K


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