Calculateur de la Loi de Gay-Lussac
Calculez la pression ou la température d'un gaz à volume constant avec la loi de Gay-Lussac.
atm
K
K
Final Pressure
1.5000 atm
Final Pressure vs Initial Pressure
Formule
Gay-Lussac's Law
At constant volume, the pressure of a gas is directly proportional to its absolute temperature.
Formula
P1 / T1 = P2 / T2
Heating a gas in a rigid container increases its pressure.
Exemple Résolu
A sealed container at 1 atm and 300 K heated to 450 K.
- 01P1/T1 = P2/T2
- 02P2 = P1 * T2 / T1
- 03P2 = 1 * 450 / 300
- 04P2 = 1.5 atm
Questions Fréquentes
Why does a tire pressure increase on a hot day?
By Gay-Lussac's law, heating the air inside the tire (roughly constant volume) increases the pressure proportionally.
Can a closed container explode from heating?
Yes. If the pressure exceeds the container's structural limit, it will fail. This is why pressurized containers have safety relief valves.
Is this the same as the combined gas law?
Gay-Lussac's law is a special case of the combined gas law (P1V1/T1 = P2V2/T2) where volume is constant.
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