One reversible heat engine operates between 1000 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 the temperature T2 must be equal to:

One reversible heat engine operates between 1000 K and T2 K and anothe

1.	One reversible heat engine operates between 1000 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 the temperature T2 must be equal to:
A.	582.7 K
B.	632.5 K
C.	682.8 K
D.	732.5 K
Answer» C. 682.8 K

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One reversible heat engine operates between 1000 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 the temperature T2 must be equal to:

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