As temperature decreases, what is the expected change in the volume of a gas?

When temperature decreases, the kinetic energy of gas molecules also lowers, leading to slower movement. According to Charles's Law, which states that the volume of a gas is directly proportional to its absolute temperature (measured in Kelvin), if the temperature of a gas decreases, the volume must also decrease, assuming the pressure remains constant. This relationship can be represented mathematically as V/T = k, where V is the volume, T is the absolute temperature, and k is a constant. Hence, as temperature decreases, the gas occupies a smaller volume, demonstrating the expected behavior of gas under lower thermal energy conditions. This understanding is fundamental in gas behavior and supports the correctness of the chosen answer.