Answered: Across a gas film of thickness of 0.2…

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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Across a gas film of thickness of 0.2 mm, components A and B are diffusing in opposite directions at 2 bars and 25 ^oC. Under steady-state conditions, total molar flux of A is twice that of B. Partial pressures of A at each side of the film are 0.40 bar and 0.10 bar. Calculate the total molar fluxes of A and B. Molecular diffusivity of A in B at 0 ^oC and 1 bar is 2x10^-5m²/s.

Please solve this problem using this equation: N_A= -D_AB x (dc_A/dz) + (c_A/c) x (N_A+ N_B)

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