Question

The expression for average mass transfer coefficient is

(a) Sh = 0.664 (Re)^ 0.5 (Sc)^ 0.33

(b) Sh = 0.664 (Re)^ 0.6 (Sc)^ 0.33

(c) Sh = 0.332 (Re)^ 0.7 (Sc)^ 0.33

(d) Sh = 0.332 (Re)^ 0.8 (Sc)^ 0.33

The question was asked by my college professor while I was bunking the class.

My doubt stems from Non Dimensionless Correlation for Convective Mass Transport in section Modes and Diffusion of Mass Transfer

Answer 1

Correct choice is (a) Sh = 0.664 (Re)^ 0.5 (Sc)^ 0.33

Explanation: Sh = h ml/D = 0.664 (Re)^ 0.5 (Sc)^ 0.33.