Thermodynamics Second Law of Thermodynamics and Entropy Performance of Heat Engines and Reversed Heat Engines
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:
1
582.7 K
2
632.5 K
3
682.8 K
4
732.5 K
5
none on the above