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Consider the convective mass transfer of specie “A” between air and water system at low concentration. The equilibrium correlation at particular operation temperature is given below y = 1.2x At a certain point the concentration of solute A in the bulk air is 0.04 mole fraction and that in the bulk aqueous phase is 0.025. The local individual mass transfer coefficients for the transport of A are, ky = 7.2 kmol/(h)(m2 )(Δy) and kx = 4.6 kmol/(h)(m2 )(Δx). Firstly, determine in which direction does the transport of the solute A occur (i.e. from the gas to the liquid or from the liquid to the gas)? Also, Calculate: 1. The overall gas-phase and the overall liquid-phase driving forces for mass transfer? The overall mass transfer coefficients, Kx and Ky  III. The interfacial concentrations in both the gas-phase and the liquid-phase  IV. The local mass flux, NA and the resistance to mass transfer in both the phases

Consider the convective mass transfer of specie “A” between air and water system at low concentration. The equilibrium correlation at particular operation temperature is given below y = 1.2x At a certain point the concentration of solute A in the bulk air is 0.04 mole fraction and that in the bulk aqueous phase is 0.025. The local individual mass transfer coefficients for the transport of A are, ky = 7.2 kmol/(h)(m2 )(Δy) and kx = 4.6 kmol/(h)(m2 )(Δx). Firstly, determine in which direction does the transport of the solute A occur (i.e. from the gas to the liquid or from the liquid to the gas)? Also, Calculate: 1. The overall gas-phase and the overall liquid-phase driving forces for mass transfer? The overall mass transfer coefficients, Kx and Ky  III. The interfacial concentrations in both the gas-phase and the liquid-phase  IV. The local mass flux, NA and the resistance to mass transfer in both the phases

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Consider the convective mass transfer of specie “A” between air and water system at low
concentration. The equilibrium correlation at particular operation temperature is given below

y = 1.2x

At a certain point the concentration of solute A in the bulk air is 0.04 mole fraction and that in the
bulk aqueous phase is 0.025. The local individual mass transfer coefficients for the transport of A
are, ky = 7.2 kmol/(h)(m2

)(Δy) and kx = 4.6 kmol/(h)(m2
)(Δx).

Firstly, determine in which direction does the transport of the solute A occur (i.e. from the gas to the
liquid or from the liquid to the gas)? Also, Calculate:

1. The overall gas-phase and the overall liquid-phase driving forces for mass transfer?

The overall mass transfer coefficients, Kx and Ky 
III. The interfacial concentrations in both the gas-phase and the liquid-phase 
IV. The local mass flux, NA and the resistance to mass transfer in both the phases

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