Problem 2. Volatilization of a Chemical from a River The lecture slides contain an example of volatilization loss of a chemical from a river after discharge of the chemical from the wastewater treatment plant of a chemical factory. a = a. Verify the derivation starting from the mass/mole balance equation; [(vw CA,W(in)) |x- (vw CA,W(out)) | x+ Ax](Ay Az) - Kaw CA,W(out) (Ax Ay) = 0 and show that the solution for the change in chemical concentration with distance (x) down river, using the same boundary condition as in the lecture slides, is ay KAW CAW Cawo exp( ~) Vw