The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)
A. $$\sqrt {{{\text{K}}_{\text{L}}}^2 \cdot {{\text{D}}_{\text{A}}}} $$
B. $${{\text{K}}_{\text{L}}}^2 \cdot {{\text{D}}_{\text{A}}}$$
C. $$\frac{{{{\text{K}}_{\text{L}}}^2}}{{{{\text{D}}_{\text{A}}}}}$$
D. $$\frac{{{{\text{K}}_{\text{L}}}}}{{{{\text{D}}_{\text{A}}}^2}}$$
Answer: Option A
This Question Belongs to Chemical Engineering >> Mass Transfer
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