On which of the following laws of nature is the air-conditioning system based?

Question

Quizplus · Accepted Answer

Air-conditioning systems are based on all the mentioned laws of nature: heat flow (heat naturally flows from hotter to cooler spaces), heat absorption (refrigerants absorb heat from the environment), and the relationship between pressure and boiling points (compressing a gas increases its temperature, while expanding it decreases its temperature, which is used in the refrigeration cycle).

On Which of the Following Laws of Nature Is the Air-Conditioning