According to Gay-Lussac's law, what type of relationship exists between temperature and pressure?

Gay-Lussac's law describes the relationship between the pressure of a gas and its absolute temperature when the volume of the gas is held constant. This law states that the pressure of a gas is directly proportional to its absolute temperature, measured in Kelvin. This means that as the temperature of the gas increases, the pressure also increases, provided the volume does not change.

This direct relationship can be mathematically represented by the formula:

( P \propto T )

or

( \frac{P_1}{T_1} = \frac{P_2}{T_2} )

If the temperature doubles, the pressure will double as well (if volume remains constant). Thus, the correct answer highlights the fundamental principle of gas behavior according to Gay-Lussac's law, where a rise in temperature leads to a corresponding rise in pressure. This knowledge is critical when analyzing gas behavior under various conditions in chemistry.