What does Boyle's Law relate to in physics?

Boyle's Law specifically describes the relationship between pressure and volume in a gas at a constant temperature. According to this law, when the pressure applied to a gas increases, its volume decreases, provided that the temperature remains unchanged. This inverse relationship can be mathematically expressed as P1V1 = P2V2, where P represents pressure and V represents volume. The fundamental principle behind Boyle's Law is that gas particles are in constant motion, and when the volume of a gas decreases, the particles are forced closer together, resulting in an increase in pressure. Understanding Boyle's Law is crucial in various applications, including diving, where changes in pressure at different depths directly affect the volume of gases in a diver's body and equipment.