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1. A bubble of pure CO₂ (0.8cm diameter) is injected into a pool of excess liquid at 25°C. The diameter of the bubble shrinks to 0.2cm after 80 seconds. Given with the total pressure=1 atm, solubility of CO₂ in water at 25°C = 1.45 × 10³ mole fraction, diffusivity of CO₂ in water at 25°C = 1.9x10-5 cm²/s, gas constant R=0.082 L.atm. mol-¹. K¹, calculate the average value of the mass transfer coefficients ki and kx. how long will it take for the bubble to vanish, if the mass transfer coefficient remains constant? (i) (ii)

1. A bubble of pure CO₂ (0.8cm diameter) is injected into a pool of excess liquid at 25°C. The diameter of the bubble shrinks to 0.2cm after 80 seconds. Given with the total pressure=1 atm, solubility of CO₂ in water at 25°C = 1.45 × 10³ mole fraction, diffusivity of CO₂ in water at 25°C = 1.9x10-5 cm²/s, gas constant R=0.082 L.atm. mol-¹. K¹, calculate the average value of the mass transfer coefficients ki and kx. how long will it take for the bubble to vanish, if the mass transfer coefficient remains constant? (i) (ii)

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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1. A bubble of pure CO₂ (0.8cm diameter) is injected into a pool of excess liquid at 25°C. The diameter of the bubble shrinks to 0.2cm after 80 seconds. Given with the total pressure=1 atm, solubility of CO₂ in water at 25°C = 1.45 x 10³ mole fraction, diffusivity of CO₂ in water at 25°C = 1.9 x10-5 cm²/s, gas constant R= 0.082 L.atm. mol¹¹. K¹¹, calculate the average value of the mass transfer coefficients k₁ and kx. how long will it take for the bubble to vanish, if the mass transfer coefficient remains constant? (i) (ii)
Transcribed Image Text:1. A bubble of pure CO₂ (0.8cm diameter) is injected into a pool of excess liquid at 25°C. The diameter of the bubble shrinks to 0.2cm after 80 seconds. Given with the total pressure=1 atm, solubility of CO₂ in water at 25°C = 1.45 x 10³ mole fraction, diffusivity of CO₂ in water at 25°C = 1.9 x10-5 cm²/s, gas constant R= 0.082 L.atm. mol¹¹. K¹¹, calculate the average value of the mass transfer coefficients k₁ and kx. how long will it take for the bubble to vanish, if the mass transfer coefficient remains constant? (i) (ii)
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