State Charles law?

Charles's Law states that the volume of a gas is directly proportional to its temperature, assuming that pressure and amount of gas remain constant. In other words, as the temperature of a gas increases, its volume also increases, and as the temperature decreases, the volume decreases. This relationship can be expressed mathematically as V1/T1 = V2/T2, where V1 and T1 are the initial volume and temperature, and V2 and T2 are the final volume and temperature.