Consider the absorption of a slightly soluble gas in a falling liquid film in fully- developed laminar flow. Which of the following correlations would be most suitable to estimate the average liquid-side mass transfer coefficient? [Note: Sh and Re are the Sherwood and Reynolds numbers, respectively, based on the film length, and Sc is the Schmidt number]

(a) Sh = 1.13 (Re)1/3(Sc)1/2 (b) Sh = 1.13 (Re)1/2(Sc)1/3 (c) Sh = 1.13 (Re)1/2(Sc)1/2 (d) Sh = 1.13 (Re)1/3(Sc)1/3