20. Hydrogen gas is maintained at 3 bars and 1 bar on opposite sides of a plastic membrane, which is 0.6 mm thick. The temperature is 25°C, and the binary diffusion coefficient of hydrogen in plastic is 8.7 x 108 m²/s. The solubility of hydrogen in the membrane is 1.5 x 10³ kmol/m³*bar. What is the mass diffusive flux of hydrogen through the membrane (in kg/m2*s)? A. 1.9 × 106 to 2.1 × 106 kg/m2*s B. 1.6 x 106 to 1.8 × 106 kg/m²*s C. 1.3 x 106 to 1.5 × 106 kg/m²*s D. 1.0 x 106 to 1.2 × 106 kg/m2*s E. 7.0 x 107 to 9.0 × 107 kg/m²*s
20. Hydrogen gas is maintained at 3 bars and 1 bar on opposite sides of a plastic membrane, which is 0.6 mm thick. The temperature is 25°C, and the binary diffusion coefficient of hydrogen in plastic is 8.7 x 108 m²/s. The solubility of hydrogen in the membrane is 1.5 x 10³ kmol/m³*bar. What is the mass diffusive flux of hydrogen through the membrane (in kg/m2*s)? A. 1.9 × 106 to 2.1 × 106 kg/m2*s B. 1.6 x 106 to 1.8 × 106 kg/m²*s C. 1.3 x 106 to 1.5 × 106 kg/m²*s D. 1.0 x 106 to 1.2 × 106 kg/m2*s E. 7.0 x 107 to 9.0 × 107 kg/m²*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:20. Hydrogen gas is maintained at 3 bars and 1 bar on opposite sides of a plastic membrane, which is 0.6
mm thick. The temperature is 25°C, and the binary diffusion coefficient of hydrogen in plastic is 8.7
x 108 m²/s. The solubility of hydrogen in the membrane is 1.5 x 10³ kmol/m³*bar. What is the mass
diffusive flux of hydrogen through the membrane (in kg/m2*s)?
A. 1.9 × 106 to 2.1 × 106 kg/m2*s
B. 1.6 x 106 to 1.8 × 106 kg/m²*s
C. 1.3 x 106 to 1.5 × 106 kg/m²*s
D. 1.0 x 106 to 1.2 × 106 kg/m2*s
E. 7.0 x 107 to 9.0 × 107 kg/m²*s
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