Chlorine absorption in a falling film (Fig. 18A.4), chlorine is being absorbed from a gas in a small experimental wetted-wall tower as shown in the figure. The absorbing fluid is water, which is moving with an average velocity of 17.7 cm/s. What is the absorption rate in g-moles/hr, if the liquid-phase diffusivity of the chlorine-water system is 1.26 x 10-5 cm2/s, and if the saturation concentration of chlorine in water is 0.823 g chlorine per 100 g water (these are the experimental values at 16°C). Discuss.