Chemistry / Unit 8 Chem 1539 short lesson, about 20 seconds
Henry's Law for Gas Solubility
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The idea
Henry's law states a gas's solubility in a liquid is directly proportional to that gas's partial pressure above the liquid, at fixed temperature.
In practice
A diver's blood dissolves far more nitrogen at depth's high pressure than at the surface, so ascending too fast lets that nitrogen bubble out.
Where people slip
Henry's law covers solubility as pressure changes at fixed temperature, not a simultaneous temperature change.
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