A reversible heat engine is embedded into the two heat sources one is a finite body qt 900 K and the other is the heat reservoir at 300 K. The heat engine operates in a cycle and produces a mechanical work output of 200 KJ/kg. The heat capacity of the body is 1.048 KJ/ kg K.
Determine:
(i) entropy change of the body
(ii) entropy change of the heat engine
(iii) entropy change of the thermal energy reservoir
(iv) entropy change of the universe
(v) the maximum work that can be available from the heat engine.
