What effect does increasing temperature have on gas pressure, under constant volume?

Increasing the temperature of a gas while keeping the volume constant leads to an increase in gas pressure. This relationship is described by Gay-Lussac's Law, which states that the pressure of a gas is directly proportional to its absolute temperature (measured in Kelvin) when the volume is held constant. As the temperature rises, the kinetic energy of the gas molecules increases, causing them to move more rapidly. This increased molecular motion results in more frequent and forceful collisions with the walls of the container, which translates into higher pressure. Therefore, the correct choice reflects the fundamental principles of gas behavior under constant volume conditions.