The cooling effect inside a refrigerator is produced by
A)an electric motor that converts electrical energy to internal energy.
B)compressing the refrigeration gas.
C)vaporizing the refrigeration liquid.
D)proper insulation.
E)exchanging warmer air with colder air.

Question

Quizplus · Accepted Answer

The cooling effect inside a refrigerator is produced by vaporizing the refrigeration liquid. When a liquid refrigerant evaporates, it absorbs heat from its surroundings, creating a cooling effect. This is why the inside of a refrigerator is colder than the room temperature. The refrigerant in a refrigerator circulates through a closed system, evaporating and condensing repeatedly to maintain the desired temperature.

The Cooling Effect Inside a Refrigerator Is Produced by