conditions. The total pressure is (1.013*10° Pa) and 298 K. The concentration of NH3 at one point is (y1) mole fraction . At the other point of 20 mm away, its concentration is (y2%). The diffusivity coefficient of ammonia in nitrogen at above conditions is 2.293*10* m/s:
conditions. The total pressure is (1.013*10° Pa) and 298 K. The concentration of NH3 at one point is (y1) mole fraction . At the other point of 20 mm away, its concentration is (y2%). The diffusivity coefficient of ammonia in nitrogen at above conditions is 2.293*10* m/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:QI/ Ammonia gas (A) is diffusing through stagnant N, (B) under steady-state
conditions. The total pressure is (1.013*10° Pa) and 298 K. The concentration of
NH; at one point is (y1) mole fraction. At the other point of 20 mm away, its
concentration is (y2%). The diffusivity coefficient of ammonia in nitrogen at
above conditions is 2.293*10 m/s:
How much would the flux of ammonia and the mass transfer coefficient change at
the following conditions:
1- When the total pressure is increased by three times at constant temperature.
2- When temperature is decreased to 100 K at constant pressure.
3- When the temperature is increased to 350 K and the pressure decreased to a
half
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