Explain the working principle of a refrigeratio... - SS2 Physics Heat and Thermodynamics Question

A refrigeration system works based on the principle of extracting heat from a low-temperature reservoir and transferring it to a high-temperature reservoir. The components involved in a refrigeration system are the compressor, condenser, expansion valve, and evaporator. The compressor compresses the refrigerant gas, raising its temperature and pressure.

 

The high-pressure gas then enters the condenser, where it releases heat to the surroundings and condenses into a high-pressure liquid. The liquid refrigerant passes through the expansion valve, which reduces its pressure and causes a drop in temperature. This low-pressure liquid then enters the evaporator, where it absorbs heat from the surroundings and evaporates into a low-pressure gas. The gas is then drawn back into the compressor to repeat the cycle.