According to Boyle's Law, how does pressure relate to volume when temperature is constant?

Boyle's Law states that for a given amount of gas at a constant temperature, the pressure and volume of that gas are inversely related. This means that when one increases, the other decreases. The mathematical expression of Boyle's Law is PV = k, where P is pressure, V is volume, and k is a constant for a specific amount of gas at a given temperature.

Therefore, if you decrease the volume of the gas (by compressing it), the pressure will increase because the gas molecules have less space to move around and will hit the walls of the container more frequently. Conversely, if you increase the volume (by allowing the gas to expand), the pressure will decrease since the molecules have more space to move around, resulting in fewer collisions with the walls of the container.

This inverse relationship is fundamental in understanding gas behavior under changing conditions and is crucial for various applications in chemistry and physics. The other answers do not accurately describe the relationship between pressure and volume as established by Boyle's Law.