The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same system is_______________________?

Question

Accepted Answer

10. For laminar falling films under penetrating theory, the mass transfer coefficient (Kc) is often proportional to the square root of the Reynolds number. A 100-fold increase in Re leads to a $\sqrt{100} = 10$-fold increase in Kc.