Charles' Law describes the relationship between which two variables?

Charles' Law specifically describes the relationship between volume and temperature in a gas at constant pressure. According to this law, the volume of a gas is directly proportional to its absolute temperature, meaning that as the temperature increases, the volume of the gas also increases, provided that the pressure remains constant. This principle is derived from the kinetic molecular theory, which states that gas particles move more rapidly and spread further apart when heated.

Understanding this relationship is vital in various applications involving gases, such as in gas turbines and other thermal systems where temperature changes can significantly affect the volume of the gas being used. Thus, when analyzing systems where temperature varies, recognizing the implications of Charles' Law allows for better predictions and management of gas behavior under those conditions.