According to Amonton's Law, what must increase when the temperature of a gas rises?

Amonton's Law states that the pressure of a gas is directly proportional to its absolute temperature when the volume is held constant. This means that if the temperature of a gas increases, the kinetic energy of the gas molecules also increases, leading to more frequent and forceful collisions against the walls of the container. As a result, the pressure exerted by the gas increases.

This relationship holds true under constant volume conditions and is crucial for understanding how gases behave when temperature changes. The increase in pressure directly correlates with the rise in temperature, confirming that the correct answer involves an increase in gas pressure when the temperature of the gas rises. Understanding Amonton's Law helps in various real-world applications, such as in heating systems and in understanding weather patterns where pressure and temperature play significant roles.