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In an air - carbon dioxide mixture at 300 K and 120 kPa, the mass of CO, in the plane at first point is 18 g and after some distance of 5 mm the mass is 2 g. The diffusivity of CO, in air at 300 K and 120 kPa is 7.8x10* m'/s. CALCULATE the molar rate of CO, across the plane of 5 mm width and 7 mm length, assuming: a. Equimolecular counter diffusion. b. Diffusion of CO, through a stagnant air layer.

In an air - carbon dioxide mixture at 300 K and 120 kPa, the mass of CO, in the plane at first point is 18 g and after some distance of 5 mm the mass is 2 g. The diffusivity of CO, in air at 300 K and 120 kPa is 7.8x10* m'/s. CALCULATE the molar rate of CO, across the plane of 5 mm width and 7 mm length, assuming: a. Equimolecular counter diffusion. b. Diffusion of CO, through a stagnant air layer.

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
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Q.2 In an air - carbon dioxide mixture at 300 K and 120 kPa, the mass of CO, in the plane at first point is 18 g and after some distance of 5 mm the mass is 2 g. The diffusivity of CO, in air at 300 K and 120 kPa is 7.8x10* mis. CALCULATE the molar rate of CO, across the plane of 5 mm width and 7 mm length, assuming: a. Equimolecular counter diffusion. b. Diffusion of CO, through a stagnant air layer.
Transcribed Image Text:Q.2 In an air - carbon dioxide mixture at 300 K and 120 kPa, the mass of CO, in the plane at first point is 18 g and after some distance of 5 mm the mass is 2 g. The diffusivity of CO, in air at 300 K and 120 kPa is 7.8x10* mis. CALCULATE the molar rate of CO, across the plane of 5 mm width and 7 mm length, assuming: a. Equimolecular counter diffusion. b. Diffusion of CO, through a stagnant air layer.
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