Charles’ Law, also known as the Law of Volume-Temperature states that the volume of a gas is directly proportional to its absolute temperature, provided the pressure remains constant. In mathematical terms, it can be expressed as:

V/T = k

Where V is the volume of the gas, T is the temperature in kelvins, and k is a constant.

This means that if we increase the temperature of a gas, its volume will increase, and if we decrease the temperature of a gas, its volume will decrease. Charles’ Law is one of the gas laws, which describe the behaviour of gases under different conditions. These laws help to explain the behaviour of gases in a variety of real-world applications, such as weather forecasting, atmospheric science, and engineering

 It is important to note that Charles’ Law only applies to ideal gases, which are gases that behave as if they were made up of a large number of tiny, non-interacting particles. In reality, gases do not behave exactly as ideal gases, but Charles’ Law provides a good approximation for most real-world gases under normal conditions.