A solid slab (composed of pure compound A) dissolves in liquid B. A and B have very different molecular sizes. The concentration of A in the hulk liquid is Cab*

a. Determine the steady-state. expression for the flux of solute A (NA) assuming that the film theory applies (the film thickness is delta). b. Simplify your expression for the flux, NA, for the case when the molecular sizes of A and B are equal.