What Variables Are Constant in Charles’s Law?

In Charles’s Law, the pressure and the amount of gas are kept constant. This law states that the volume of a gas is directly proportional to its temperature, provided that the pressure and the amount of gas remain unchanged.

To put it simply, if you increase the temperature of a gas, its volume will also increase, as long as the pressure and the amount of gas do not change. Conversely, if you decrease the temperature, the volume will decrease.

This relationship can be expressed mathematically as:

V ∝ T

Where:

• V is the volume of the gas
• T is the temperature of the gas (in Kelvin)

Charles’s Law is a fundamental principle in the study of gases and is often used in various scientific and engineering applications.