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: McGraw-Hill Education
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1. Gas absorption with a first order reaction: CO₂ is absorbed into a liquid under
conditions such that the liquid side mass transfer coefficient is 2 x 10-4m/s. The
diffusion coefficient of CO₂ in the liquid is 2 x 10-⁹m²/s. The interfacial
concentration of CO₂ can be found using the Henry's law. Henry coefficient for
CO₂ is 0.0315 bar m³/mol when expressed as p = HC at equilibrium, the C being
the concentration in the liquid. The pressure is 1atm and temperature is 300K.
Assume that CO₂ reacts with a dissolved solute in the liquid with a rate constant
of 1s-¹. Also assume that the bulk concentration of CO₂ is zero.
a. Find the Hatta number.
b. Find the flux of CO₂ at the interface
c. Find the flux of CO₂ going into the bulk liquid.
d. What percentage of CO₂ reacts in the film itself?
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Transcribed Image Text:1. Gas absorption with a first order reaction: CO₂ is absorbed into a liquid under conditions such that the liquid side mass transfer coefficient is 2 x 10-4m/s. The diffusion coefficient of CO₂ in the liquid is 2 x 10-⁹m²/s. The interfacial concentration of CO₂ can be found using the Henry's law. Henry coefficient for CO₂ is 0.0315 bar m³/mol when expressed as p = HC at equilibrium, the C being the concentration in the liquid. The pressure is 1atm and temperature is 300K. Assume that CO₂ reacts with a dissolved solute in the liquid with a rate constant of 1s-¹. Also assume that the bulk concentration of CO₂ is zero. a. Find the Hatta number. b. Find the flux of CO₂ at the interface c. Find the flux of CO₂ going into the bulk liquid. d. What percentage of CO₂ reacts in the film itself?
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