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Unformatted text preview: , 7 th edition. 3.Welly R. Fundamentals of Momentum, Heat, and Mass Transfer ,3 rd edition. Nomenclature : D AB = Molar molecular diffusion coefficient of A in B . h = Diffusion path-length. M A = Molecular weight. N A = Molar fluxes. P A = Vapor pressure of pure chemical. S = slope. = Contribution to atomic-diffusion volume. L = Density of chemical. D = Collision integral. T: temperature (k) P: pressure in tube (atm) t: time (sec) h: diffusion path length (cm) R: ideal gas law constant (82.06 atm cm3 / mol k)...
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- Fall '09