# Gay-Lussac's Law

P_2 / T_2 = P_1 / T_1
Gay-Lussac Law Calculator.
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The law of Gay-Lussac tells us that at constant volume, the volume of a ideal gas is proportional to its temperature. Therefore, for two different states 1 and 2 of the same gas, at constant volume,

P_2 / T_2 = P_1 / T_1

P1: pressure in state 1 in pascal (Pa)
T1: temperature in state 1 in Kelvin (K)
P2: pressure in state 2 in pascal (Pa)
P2: temperature in state 2 in Kelvin (K)