Estimate the rate of absorption of oxygen at 10 atm and 25C into water flowing as a film down a vertical wall 1 m high and 6 cm in width at a Reynolds number of 50 without surface ripples. Diffusivity of oxygen in water is 2.5 x 10-5 cm2/s and the mole fraction of oxygen in water at saturation is 2.3 x 10-4. Viscosity of water=0.89 cP. Neglect the vaporization of water