A wetted wall tower is used to aerate water using air at 2.0 atm total system pressure

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A wetted wall tower is used to “aerate” water using air at 2.0 atm total system pressure and 20°C. The molar composition of air is 21% O2, 78% N2, and 1% other gases. Let solute A = O2. At 20°C, the Henry’s law constant for dissolution of O2 gas in water is H = 40,100 atm based on the definition pA,i = H xA,i, and the mass density of liquid water is 1000 kg/m3

a. What is the maximum possible composition (as mole fraction) of oxygen (O2) dissolved that could be dissolved in the water, x*A

b. What is the maximum possible molar concentration of oxygen (O2) that could be dissolved in water, c*AL?

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Fundamentals Of Momentum Heat And Mass Transfer

ISBN: 9781118947463

6th Edition

Authors: James Welty, Gregory L. Rorrer, David G. Foster

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