According to Charles's law, if the volume of a gas is halved, what happens to its temperature if pressure is to remain constant?

According to Charles's Law, which states that at constant pressure, the volume of a gas is directly proportional to its temperature measured in Kelvin, a change in volume will result in a corresponding change in temperature. The relationship can be mathematically expressed as V1/T1 = V2/T2, where V is volume and T is temperature in Kelvin.

When the volume of a gas is halved (let's say from V to V/2), to maintain constant pressure, the temperature must also decrease to maintain the proportional relationship. Since the relationship is direct, if the volume decreases, the temperature must also decrease. Specifically, if the volume is halved, the temperature will also halve in Kelvin.

Understanding this principle is crucial when applying Charles's Law; hence, selecting that the temperature is halved as the gas's volume is halved aligns with the law's defined relationship.