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Two bulbs are connected by a straight tube, 0.001 m in diameter and 0.15 m in length. Initially the bulb at End 1 contains N2 and the bulb at End 2 contains H2. Pressure and temperature are constant at 25°C and 1 atm. At a time after diffusion starts, the nitrogen content of the gas at End 1 and End 2 of the tube became 80 mol% and 25 mol%, respectively. If the binary diffusion coefficient is 0.784 cm²/s and the gas constant = 82.06 atm.cm/mol. K, determine: a. The rates and direction of mass transfer in mol/s. b. The species velocities, in cm/s, at the point (z = 0.1 m) where the molar percentages of N2 and H2 are 43.3% and 56.7, respectively. c. The molar average velocity at the point (z= 0.1 m).

Two bulbs are connected by a straight tube, 0.001 m in diameter and 0.15 m in length. Initially the bulb at End 1 contains N2 and the bulb at End 2 contains H2. Pressure and temperature are constant at 25°C and 1 atm. At a time after diffusion starts, the nitrogen content of the gas at End 1 and End 2 of the tube became 80 mol% and 25 mol%, respectively. If the binary diffusion coefficient is 0.784 cm²/s and the gas constant = 82.06 atm.cm/mol. K, determine: a. The rates and direction of mass transfer in mol/s. b. The species velocities, in cm/s, at the point (z = 0.1 m) where the molar percentages of N2 and H2 are 43.3% and 56.7, respectively. c. The molar average velocity at the point (z= 0.1 m).

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
Chapter1: Introduction
Section: Chapter Questions
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Q3) Two bulbs are connected by a straight tube, 0.001 m in diameter and 0.15 m in length. Initially the bulb at End 1 contains N2 and the bulb at End 2 contains H2. Pressure and temperature are constant at 25°C and 1 atm. At a time after diffusion starts, the nitrogen content of the gas at End 1 and End 2 of the tube became 80 mol% and 25 mol%, respectively. If the binary diffusion coefficient is 0.784 cm²/s and the gas constant= 82.06 atm.cm/mol. K, determine: a. The rates and direction of mass transfer in mol/s. b. The species velocities, in cm/s, at the point (z = 0.1 m) where the molar percentages of N2 and H2 are 43.3% and 56.7, respectively. c. The molar average velocity at the point (z= 0.1 m).
Transcribed Image Text:Q3) Two bulbs are connected by a straight tube, 0.001 m in diameter and 0.15 m in length. Initially the bulb at End 1 contains N2 and the bulb at End 2 contains H2. Pressure and temperature are constant at 25°C and 1 atm. At a time after diffusion starts, the nitrogen content of the gas at End 1 and End 2 of the tube became 80 mol% and 25 mol%, respectively. If the binary diffusion coefficient is 0.784 cm²/s and the gas constant= 82.06 atm.cm/mol. K, determine: a. The rates and direction of mass transfer in mol/s. b. The species velocities, in cm/s, at the point (z = 0.1 m) where the molar percentages of N2 and H2 are 43.3% and 56.7, respectively. c. The molar average velocity at the point (z= 0.1 m).
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