Gay-Lussac's Law

Gay-Lussac's Law describes the relationship between the pressure and temperature of a fixed mass of gas held at a constant volume. According to this law, the pressure of a gas is directly proportional to its absolute temperature (in Kelvin) if the volume is kept constant. The law is named after Joseph Louis Gay-Lussac, a French chemist and physicist.

In the provided formula, P1 is the initial pressure of the gas, T1 is the initial absolute temperature of the gas, T2 is the final absolute temperature of the gas, and P2 is the final pressure of the gas. The result should be the new pressure of the gas given the change in temperature, assuming constant volume and quantity of gas.