# A Carnot engine is operated between two heat reservoirs at temperatures of 400 K and 300...

###### Question:

A Carnot engine is operated between two heat reservoirs at temperatures of 400 K and 300 K. (a) If the engine receives 5 x 103 kJ from the reservoir at 400 K in each cycle, how many joules does it reject to the reservoir at 300 K? (b) If the engine is operated as a refrigerator (ie., in reverse) and receives 5 × 103 kJ from the reservoir at 300 K, how many joules does it deliver to the reservoir at 400 K? (c) How much work is done by the engine in each case?