A

David

Darling

Henry, William (1774–1836)

William Henry

William Henry was a British chemist and physician whose most important work was his study of the solubility of gases in water under varying temperatures and pressures. He formulated (1803) what became known as Henry's law which states that, at a given temperature, the mass of a gas dissolved in a liquid is proportional to the pressure of the gas acting on the liquid.