Q 46. Ammonia diffuses through a stagnant layer of air, 7 mm thick. The mole fractions of NH3 on the two sides of the air layer are yA0 = 0,82 and yAl = 0,16. Air is non-diffusing. Temperature is 28 ºC and pressure is 101325 Pa. Diffusivity of ammonia in air is given: DAB = 2.14 · 10-5 m2/s. Calculate the molar flux NA of NH3.

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
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Q 46. Ammonia diffuses through a stagnant layer of air, 7 mm thick. The mole fractions of NH3 on the two sides of the air layer are yA0 = 0,82 and yAl = 0,16. Air is non-diffusing. Temperature is 28 ºC and pressure is 101325 Pa. Diffusivity of ammonia in air is given: DAB = 2.14 · 10-5 m2/s. Calculate the molar flux NA of NH3.

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