Problem 4; 40 points) Carbon dioxide diffuses through a 0.3 inch stagnant air film to a NaOH solution where it instantaneously disappears by a chemical reaction. Estimate the rate of transfer (lb-mol/s) across one square foot of area if the temperature and pressure of the system are 125F and 1 atm, respectively, and if the concentration of carbon dioxide at the outer edge of the air layer is 4 mole%. Also, determine the concentration profile for this process. In determining the concentration profile, make a computer-generated plot of concentration (CO2, mole fraction basis) as a function of position in the stagnant film. Include the profile for yA1 = 0.04, per above, and also curves for yai = 0.1, 0.2, and 0.4