Question

Which Gas law is applied in Refrigerators?

Answer 1

Hint: We know that the refrigerator is a device used for refrigeration to maintain the temperature of the system lower as compared to the surroundings. The working principle of a refrigerator involves the removal of heat from one region and its deposition to another.

Complete answer:
A refrigerator works on the principle of the second law of thermodynamics. This law is related to the extraction of heat from a body to lower the temperature of the body. The temperature of the body can be lowered by extracting or removing the heat from the material or the body. This phenomenon takes place in refrigerators as well. Coolant flowing through coolant tubes and condensers play a very important role in extracting heat from all the items kept in the refrigerator. The evaporator in the refrigerator is the part that makes the items in the refrigerator cold.
Refrigerant turns from a liquid to gas through evaporation and the evaporator cools the area around it. Thus, producing a proper environment for storing food. It works by passing a cool refrigerant around the food items which are kept inside the refrigerator. The combined gas law is applied in refrigerators. Freon is the gas that is used for refrigeration. This is a colourless gas. The general gas law or combined gas law is the law obtained by combining the above-mentioned gas laws. So, this gives the summations of Avogadro’s law, Charle’s law, and Boyle’s law. It aims at explaining the relationship between the volume and pressure for a fixed quantity of gas.

Note:
Remember that the freezer is surrounded by the evaporator tube so, when we keep any food item in the refrigerator, the evaporator tube absorbs the heat from this item. After this, a liquid refrigerant is converted into vapor.