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Published online by Cambridge University Press: 15 September 2014
In the case of diffusion, in a long tube of unit section, suppose that we have, at section x of the tube, n1P1s and n2P2s per cubic unit, with translational speeds α1 and α2, respectively. If G1 be the whole mass of the first gas on the negative side of the section, it is shown that the rate of flow of that gas is