Problem S-3a. A gaseous mixture of 30 mole% O2 (A, 32 g/gmole) and 70 mole% N₂ (B, 28 g/gmole) is diffusing through a porous medium. The total system pressure is 1.5 atm, and the temperature is 80 °C. (a) What is the molar concentration of N₂ in the gas mixture? (b) What is the molecular diffusion coefficient of O₂ in N₂? (c) If the temperature is increased from 80 °C to 160 °C, then scale molecular diffusion coefficient to the new temperature, assuming that the collision integral (2D), does not change from 80 to 160 °C.
Problem S-3a. A gaseous mixture of 30 mole% O2 (A, 32 g/gmole) and 70 mole% N₂ (B, 28 g/gmole) is diffusing through a porous medium. The total system pressure is 1.5 atm, and the temperature is 80 °C. (a) What is the molar concentration of N₂ in the gas mixture? (b) What is the molecular diffusion coefficient of O₂ in N₂? (c) If the temperature is increased from 80 °C to 160 °C, then scale molecular diffusion coefficient to the new temperature, assuming that the collision integral (2D), does not change from 80 to 160 °C.
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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Transcribed Image Text:Problem S-3a. A gaseous mixture of 30 mole% O2 (A, 32 g/gmole) and 70 mole% N₂ (B, 28 g/gmole) is
diffusing through a porous medium. The total system pressure is 1.5 atm, and the temperature is 80 °C.
(a) What is the molar concentration of N₂ in the gas mixture?
(b) What is the molecular diffusion coefficient of O₂ in N₂?
(c) If the temperature is increased from 80 °C to 160 °C, then scale molecular diffusion coefficient to the
new temperature, assuming that the collision integral (SD), does not change from 80 to 160 °C.
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