Which law explains the relationship between temperature and volume of a gas?

The relationship between temperature and volume of a gas is described by Charles' Law. This law states that, at constant pressure, the volume of a gas is directly proportional to its absolute temperature (measured in Kelvin). This means that if the temperature of a gas increases, its volume will also increase, provided that the pressure remains unchanged. Conversely, if the temperature decreases, the volume will decrease.

The significance of this law lies in its implications for various applications in physics and chemistry, such as predicting how gases will behave under different temperature conditions. Understanding this relationship is crucial for fields like meteorology, engineering, and even everyday scenarios involving hot air balloons or sealed containers.