2007-12-17 00:30:53 · 3 answers · asked by kiwi_frost 1 in Science & Mathematics ➔ Chemistry
Effusion in the gas phase is inversely proportional to the square root of molar mass. The same is roughly true for diffusion in the gas phase. Liquids are more complicated.
2007-12-17 01:16:48 · answer #1 · answered by Facts Matter 7 · 0⤊ 0⤋
Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular weight. Thus, if the molecular weight of one gas is four times that of another, it would diffuse through a porous plug or escape through a small pinhole in a vessel at half the rate of the other.
2016-04-09 21:30:19 · answer #2 · answered by Anonymous · 0⤊ 0⤋
diffusion decreases with molecular weight and theoretically is inversely proportional to cubic root of M for spherical compounds
2007-12-17 00:45:25 · answer #3 · answered by maussy 7 · 0⤊ 0⤋