Henry’s law

Henry’s law, statement that the amount (C) of a gas dissolved by a liquid is proportional to the pressure (P) of the gas upon the liquid. That is,C = kP,where k is a constant dependent on the material. The law, which was first formulated in 1803 by the English physician and chemist William Henry, holds only for dilute solutions and low gas pressures. In a very dilute solution, a solute molecule will (with rare exceptions)...