Diffusion of oxygen in a laminar-flowing film of water.Estimate the rate of absorption of oxygen at 10 atm and 25oC into water flowing as a film down a vertical wall 1m high and 6 cm in width at a Reynolds number of 50 without surface ripplesDiffusivity of oxygen in water is 2.5x10-5 cm2/s and the mole fraction of oxygen in water at saturation is 2.3x 10-4.

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Diffusion of oxygen in a laminar-flowing film of water.
Estimate the rate of absorption of oxygen at 10 atm and 25oC into water flowing as a film down a vertical wall 1m high and 6 cm in width at a Reynolds number of 50 without surface ripplesDiffusivity of oxygen in water is 2.5x10-5 cm2/s and the mole fraction of oxygen in water at saturation is 2.3x 10-4.

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