A wetted wall column is being used to strip a solute from water with an inert gas stream. Both the inert gas

and the liquid solvent are non$-$diffusing.

a$)$ Sketch mole fraction profiles of the solute $($A$)$ in the gas and liquid films, clearly labeling the bulk and

interface mole fractions in both films. Also indicate the direction of flux of A with an arrow.

b$)$ Sketch y vs$.$ x for the above stripping process, showing the equilibrium line and the relative positions of xAi,

yAi, xAL, yAG, yA$*,$ and xA$*($label these variables on the axes$).$

c$)$ Draw a line on the plot in b$)$ whose slope gives the ratio of the mass transfer coefficients. Answer below:

will this slope equal $$kx$/$ky or $$kx$/$ky$?$