1.

Molar flux consist of ______________(a) Molar flux = partial flux + diffusion(b) Total flux = bulk motion + diffusion(c) Molar flux = solid motion + flow rate(d) Total flux = partial flux + flow rateThis question was addressed to me during an online interview.My question is from External Mass Transfer topic in section Heterogenous Reactions of Bioprocess Engineering

Answer»

The correct OPTION is (B) Total flux = bulk motion + diffusion

The best explanation: Molar flux consists of two parts:

– Bulk motion of the fluid, BA

MOLECULAR diffusion flux relative to the bulk motion of the fluid produced by a concentration gradient, JA

– WA = BA + JA (total flux = bulk motion + diffusion).



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