Chapter 1 Notes: States of Matter — Boyle's Law (Isothermal Gas Behavior)

Boyle's Law describes the relationship between the pressure and volume of a gas when the temperature and amount of gas remain constant. It states that as you increase the pressure on a gas, its volume decreases, and conversely, if you decrease the pressure, its volume increases. This means that pressure (P) and volume (V) have an inverse relationship, and their product (P imes V) will always be a fixed number under these conditions.

For example, if you have a gas at 1 atmosphere of pressure taking up 24 liters of space, and you reduce its volume to 12 liters (half the space), its pressure will double to 2 atmospheres.