Consider that a binary mixture of 5.0 mole% ethanol vapor in 95 mole% carbon dioxide carrier gas
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Consider that a binary mixture of 5.0 mole% ethanol vapor in 95 mole% carbon dioxide carrier gas is diffusing through a randomly porous adsorbent material with void fraction of 0.50. The system temperature is 80 C, and the total system pressure is 1.5 atm. It is known that at 80 C and 1.0 atm, the molecular diffusion coefficient of ethanol vapor (A) in CO2 gas (B) is DAB 0.10 cm2/s.
a. What is the molar concentration of 5.0 mole% ethanol vapor in CO2 gas at 80 C and 1.5 atm, in units of gmole A/m3?
b. What is the effective diffusion coefficient D’Ae through the porous material if the average pore diameter is 0.15 μm at 80 C and 1.5 atm?
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Related Book For 
Fundamentals Of Momentum Heat And Mass Transfer
ISBN: 9781119723547
7th Edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
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