Chemistry / Unit 7 Chem 1224 short lesson, about 20 seconds
Amontons's Law: Pressure and Temperature
Captions available
The idea
At constant volume, a fixed amount of gas has pressure directly proportional to its kelvin temperature.
In practice
Heating a sealed, rigid canister raises the gas pressure inside in direct proportion to its kelvin temperature rise.
Where people slip
This proportionality holds only for kelvin temperature — doubling a Celsius reading does not double the pressure.
Your place on the trail
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