According to the gas laws, how does pressure relate to temperature?

Pressure is directly proportional to temperature when the volume and the amount of gas are held constant, as described by Gay-Lussac's Law. This means that if the temperature of a gas increases, its pressure also increases, provided the volume does not change. This relationship arises because increasing the temperature causes gas molecules to move faster, resulting in more frequent and forceful collisions with the walls of the container, which in turn raises the pressure.

In practical applications, this principle explains why a sealed container filled with gas can burst if it is heated: the temperature increase leads to a rise in pressure until the container can no longer withstand it.

The other options suggest relationships that do not accurately represent the behavior of gases under constant volume conditions. Hence, the correct understanding of the relationship between pressure and temperature is encapsulated by the direct proportionality indicated in the correct choice.