Boyle’s Law describes the relationship between the pressure and volume of a gas at constant temperature. The variables involved in Boyle’s Law are:
1. **Pressure (P):** This is the force exerted by the gas per unit area. It is usually measured in units like Pascals (Pa), atmospheres (atm), or millimeters of mercury (mmHg).
2. **Volume (V):** This is the space that the gas occupies. It is typically measured in liters (L) or cubic meters (m³).
Boyle’s Law states that for a given mass of gas at constant temperature, the pressure of the gas is inversely proportional to its volume. Mathematically, this can be expressed as:
P ∝ 1/V
or
P × V = constant
This means that if the volume of the gas increases, the pressure decreases, and vice versa, as long as the temperature remains constant.