What is the formula for Gay-Lussac?

Answer 1

Gay-Lussac's Law states that the pressure of a sample of gas at constant volume, is directly proportional to its temperature in Kelvin.

The P's represent pressure, while the T's represent temperature in Kelvin.

P1 / T1 = constant

After the change in pressure and temperature,

P2 / T2 = constant

Combine the two equations:

P1 / T1 = P2 / T2

When any three of the four quantities in the equation are known, the fourth can be calculated. For example, we've known P1, T1 and P2, the T2 can be:

T2 = P2 x T1 / P1