Gay Lussac's Law relates which two variables in a gas system?

Gay Lussac's Law specifically addresses the relationship between the pressure of a gas and its temperature when volume is held constant. According to this law, as the temperature of a gas increases, the pressure also increases, provided that the volume does not change. This relationship is quantitatively expressed as ( P \propto T ) or ( \frac{P_1}{T_1} = \frac{P_2}{T_2} ), indicating that the pressure and absolute temperature (in Kelvin) of the gas are directly proportional.

In practical terms, you can envision that heating a gas (in a sealed container, for instance) results in the gas molecules moving faster, which leads to more forceful collisions with the walls of the container, thus increasing the pressure. This law is fundamental in understanding how gases behave under temperature variations, especially in applications where maintaining constant volume is critical.

The other choices refer to relationships that are defined by differentgas laws. For instance, pressure and volume are related through Boyle’s Law, while Charles’s Law pertains to temperature and volume. The relationship between pressure and the number of moles is described by the ideal gas law, but that also includes temperature and volume as variables, rather than focusing exclusively