Gay Lussacs Law

Real World Example

Imagine you're inflating a balloon on a chilly morning, and you notice it doesn't seem to expand as much as it did the previous warmer day. Just like how the balloon's pressure seems to drop with the cooler temperature, Gay-Lussac's Law tells us that the pressure of a gas is directly proportional to its temperature when the volume is constant. In this analogy, the balloon represents the gas, the air inside represents the molecules, and the cooler temperature decreases the energy of the molecules, leading to less pressure, just as Gay-Lussac's Law predicts for gases.