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. Verify the derivation starting from the mass/mole balance equation; [(vw CA,W(in)) [x - (vw CA,W(out)) [x+ ax](Ay Az) - KA,w 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 CAW = exp CAWO (- ay KAW x) Vw