Oxygen is diffusing through a stagnant gas mixture containing 50% methane, 30% hydrogen and 20% carbon dioxide by volume. The total pressure is 1 x 105 N/m² and the temperature is 20 °C. The partial pressure of oxygen at two planes 5 mm apart are 13 x 10³ and 6.5 x 10³ N/m² respectively. Estimate the rate of diffusion of oxygen in kmol/m².s. Data: At 0 °C and pressure at 1 bar, the diffusivities of oxygen with respect to methane, hydrogen and carbon dioxide are: Do2-CH4 0.184 cm²/s, Do2-H2 = 0.690 cm2/s, and Doz-co2-0.139 cm²/s.
Oxygen is diffusing through a stagnant gas mixture containing 50% methane, 30% hydrogen and 20% carbon dioxide by volume. The total pressure is 1 x 105 N/m² and the temperature is 20 °C. The partial pressure of oxygen at two planes 5 mm apart are 13 x 10³ and 6.5 x 10³ N/m² respectively. Estimate the rate of diffusion of oxygen in kmol/m².s. Data: At 0 °C and pressure at 1 bar, the diffusivities of oxygen with respect to methane, hydrogen and carbon dioxide are: Do2-CH4 0.184 cm²/s, Do2-H2 = 0.690 cm2/s, and Doz-co2-0.139 cm²/s.
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:Oxygen is diffusing through a stagnant gas mixture containing 50% methane, 30%
hydrogen and 20% carbon dioxide by volume. The total pressure is 1 x 10' N/m²
and the temperature is 20 °C. The partial pressure of oxygen at two planes 5 mm
apart are 13 x 10³ and 6.5 x 10³ N/m² respectively.
Estimate the rate of diffusion of oxygen in kmol/m².s.
Data: At 0 °C and pressure at 1 bar, the diffusivities of oxygen with respect to
methane, hydrogen and carbon dioxide are:
D02-CH4 0.184 cm²/s, Do2-H2 0.690 cm²/s, and Doz-co2 = 0.139 cm²/s.
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