2. (30 pts) A waste-water stream is introduced to the top of a mass-transfer stripping tower where the flow is countercurrent to an air stream. The concentration of species A in the waste-water feed is CAL=1.5103mol/m3. The fresh air gas stream (no A) has partial pressure, pAG=0atm. At the operating conditions within the tower, the film mass-transfer coefficients are kL=7104m2s(kmol/m3)kmol&kG=0.03m2satmkmol The concentrations are in the Henry's law region with Henry's law constant, H=9kmol/m3atm a) Determine the overall mass-transfer coefficients, KL&KG b) Sketch the equilibrium distribution curve of the partial pressure of A vs. concertation of A including pAG,CAL,pA,CA and H; and determine the equilibrium concentrations, pA&CA. c) Determine the overall molar flux of A,NA d) Determine the fraction (\%) of the total resistance in the liquid and vapor phases