Question

A reversible heat engine operates between two reservoirs at temperatures of 600°C and

40ºC. The engine drives a reversible refrigerator, which operates between 40°C and

-20°C. The heat transfer to the engine is 2000 kJ and the network output from the

combined engine and the refrigerator system is 360 kJ. Calculate heat transfer to the

refrigerator and net heat transfer to the reservoir at 40°C.​

Answer 1

Answer:

Calculate the thermal efficiency of the reversible heat engine using the following relation:

Here, is the temperature of the low-temperature reservoir and is the temperature of the high-temperaturereservoir.

Substitute for and for .