Question

At a particular section of an equipment for absorption of the solute A in a liquid, the bulk gas phase contains \( 9.5 \mathrm{~mol} \% \mathrm{~A} \) and the liquid contains \( 2 \mathrm{~mol} \% \) of it. The gas film coefficient is \( \mathrm{ky}=10 \mathrm{kmol} /(\mathrm{h})\left(\mathrm{m}^{2}\right)(\Delta y) \) and \( 60 \% \) of the mass transfer resistance occurs in the liquid film. The Henry's law applies, \( y_{\mathrm{A}}=0.85 \mathrm{x}^{*} \). Calculate (i) The overall mass transfer coefficient, \( \mathrm{K}_{\mathrm{x}} \); (ii) the molar flux of A ; and (iii) the interfacial concentration of the solute, \( \mathrm{X}_{\mathrm{Ai}} \) and \( \mathrm{Y}_{\mathrm{Ai}} \).

          At a particular section of an equipment for absorption of the solute A in a liquid, the bulk gas phase contains \( 9.5 \mathrm{~mol} \% \mathrm{~A} \) and the liquid contains \( 2 \mathrm{~mol} \% \) of it. The gas film coefficient is \( \mathrm{ky}=10 \mathrm{kmol} /(\mathrm{h})\left(\mathrm{m}^{2}\right)(\Delta y) \) and \( 60 \% \) of the mass transfer resistance occurs in the liquid film. The Henry's law applies, \( y_{\mathrm{A}}=0.85 \mathrm{x}^{*} \). Calculate (i) The overall mass transfer coefficient, \( \mathrm{K}_{\mathrm{x}} \); (ii) the molar flux of A ; and (iii) the interfacial concentration of the solute, \( \mathrm{X}_{\mathrm{Ai}} \) and \( \mathrm{Y}_{\mathrm{Ai}} \).

At a particular section of an equipment for absorption of the solute A in a liquid, the bulk gas phase contains 9.5 mol% A and the liquid contains 2 mol% of it. The gas film coefficient is ky=10 kmol /(h)(m^2)(Δ y) and 60 % of the mass transfer resistance occurs in the liquid film. The Henry's law applies, yA=0.85 x^*. Calculate (i) The overall mass transfer coefficient, Kx; (ii) the molar flux of A ; and (iii) the interfacial concentration of the solute, XAi and YAi.

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