The general form of the StefanMaxwell equation for mass transfer of species i in an n-component ideal

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The general form of the Stefan€“Maxwell equation for mass transfer of species i in an n-component ideal gas mixture along the z-direction for flux is given by

Y:Yi (vj – vi) Σ. dy dz j=1.j # i


Show that for a gas-phase binary mixture of species A and B, this relationship is equivalent to Fick€™s rate equation:

dyд +yA (NA,z + NB2) NAz =-CDAB dz

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Fundamentals Of Momentum Heat And Mass Transfer

ISBN: 9781118947463

6th Edition

Authors: James Welty, Gregory L. Rorrer, David G. Foster

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