A carnot engine operates between temperature levels of 600k and 300k, It drives a carnot refrigerator which provides cooling at 250k and discards heat at 300k. Determine a numerical value for the ratio of the heat extracted by the refrigerator (cooling load) to the heat delivered to the engine (heating load).

the ratio of the heat extracted by the refrigerator (cooling load) to the heat delivered to the engine (heating load) is 2.5

Explanation:

Efficiency is defined as the ratio of desired output / input

Efficiency of carnot engine =

so,

in this case

work is the same because we use work from carnot engine to power the refrigerator

Hence,

the ratio of the heat extracted by the refrigerator (cooling load) to the heat delivered to the engine (heating load) is 2.5

answer:

a

explanation: