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What is the unit of mass transfer coefficient?(a) ms(b) m/s(c) ms^2(d) ms^-2This question was posed to me during an interview.My enquiry is from External Mass Transfer in portion Heterogenous Reactions of Bioprocess Engineering |
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Answer» RIGHT OPTION is (b) m/s Explanation: Molar flux form a BULK fluid at concentration CAb to the surface of a spherical particle of diameter dp at concentration CAs: WA = kC (CAb-CAs) Where, WA (Molar flux) = moles/m^2s kC (Mass transfer coefficient) = m/s. |
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