Meaning of Henry's law

Hen'ry's law'

Pronunciation: [key]
— Thermodynam. Thermodynam.
  1. the principle that at a constant temperature the concentration of a gas dissolved in a fluid with which it does not combine chemically is almost directly proportional to the partial pressure of the gas at the surface of the fluid. Cf. partial pressure.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.