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Ammonia (A) is diffusing through a stagnant gas mixture consisting of one-third nitrogen (B) and two-thirds Hydrogen (C) by volume. The total pressure is 206.8 kpa and the temperature is 540C. Calculate the rate of diffusion of ammonia

Ammonia (A) is diffusing through a stagnant gas mixture consisting of one-third nitrogen (B) and two-thirds Hydrogen (C) by volume. The total pressure is 206.8 kpa and the temperature is 540C. Calculate the rate of diffusion of ammonia

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
Problem 1.1P
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1. Ammonia (A) is diffusing through a stagnant gas mixture consisting of one-third nitrogen (B) and two-thirds Hydrogen (C) by volume. The total pressure is 206.8 kpa and the temperature is 540C. Calculate the rate of diffusion of ammonia through a film gas 0.5 mm thick when the concentration change across the film is 5% volume. The diffusivities at 2000C and one standard atmosphere pressure air reported to be DAB- 5.391 x 105 m²/s and DAc= 1.7371 x 104 m/s 2. Determine the Sherwood number based on the diameter of the sphere for equimolal counter-diffusion from sphere to a surrounding stationary infinite medium.
Transcribed Image Text:1. Ammonia (A) is diffusing through a stagnant gas mixture consisting of one-third nitrogen (B) and two-thirds Hydrogen (C) by volume. The total pressure is 206.8 kpa and the temperature is 540C. Calculate the rate of diffusion of ammonia through a film gas 0.5 mm thick when the concentration change across the film is 5% volume. The diffusivities at 2000C and one standard atmosphere pressure air reported to be DAB- 5.391 x 105 m²/s and DAc= 1.7371 x 104 m/s 2. Determine the Sherwood number based on the diameter of the sphere for equimolal counter-diffusion from sphere to a surrounding stationary infinite medium.
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