Explain the working principle of a refrigeratio... - SS1 Physics Heat and Thermodynamics II Question

A refrigeration system works by removing heat from a refrigerated space, thereby cooling it down. The key components of a refrigeration system include the compressor, condenser, expansion valve, and evaporator. The compressor pressurises the refrigerant, increasing its temperature and pressure. The high-pressure refrigerant then flows to the condenser, where it releases heat to the surroundings and condenses into a liquid.

The liquid refrigerant passes through the expansion valve, which reduces its pressure, causing it to evaporate and absorb heat from the refrigerated space. The gaseous refrigerant then enters the evaporator, where it completes the cycle by absorbing heat and turning it back into a low-pressure gas. This cycle is repeated continuously to maintain the desired cooling effect.