A 4 cm diameter bubble of pure CO2 is injected into an excess well-stirred liquid at 50°C. The bubble diameter shrinks to 3 cm after 2 min. Given: total pressure = 5 atm; solubility of CO2 in water = 4.5 x 103 mass fraction; diffusivity of CO2 in water = 1.9 x 105 cm2/s. and water density = 850 kg/m Calculate the average value of the mass transfer coefficients, ki, and k. How long %3D %3D %3D will it take for the bubble to vanish if the mass transfer coefficients remain constant?
A 4 cm diameter bubble of pure CO2 is injected into an excess well-stirred liquid at 50°C. The bubble diameter shrinks to 3 cm after 2 min. Given: total pressure = 5 atm; solubility of CO2 in water = 4.5 x 103 mass fraction; diffusivity of CO2 in water = 1.9 x 105 cm2/s. and water density = 850 kg/m Calculate the average value of the mass transfer coefficients, ki, and k. How long %3D %3D %3D will it take for the bubble to vanish if the mass transfer coefficients remain constant?
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
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Transcribed Image Text:A 4 cm diameter bubble of pure CO2 is injected into an excess well-stirred liquid at
50°C. The bubble diameter shrinks to 3 cm after 2 min.
Given: total pressure = 5 atm; solubility of CO2 in water = 4.5 x 103 mass fraction;
diffusivity of CO2 in water = 1.9 x 105 cm²/s. and water density = 850 kg/m³l
Calculate the average value of the mass transfer coefficients, k1, and k. How long
will it take for the bubble to vanish if the mass transfer coefficients remain
constant?
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