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19.2-2. Diffusion of Ammonia in an Aqueous Solution. An ammonia (A)-water (B) solu- tion at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface. The concentration of ammonia in the organic phase is held constant and is such that the equilibrium concentration of ammonia in the water at this sur- face is 2.0 wt % ammonia (density of aqueous solution 991.7 kg/m) and the concen- tration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density 961.7 kg/m). Water and the organic are insoluble in each other. The diffu- sion coefficient of NH, in water is 1.24 x 10 m2/s. (a) At steady state, calculate the flux NA in kg mol/s m2. (b) Calculate the flux Ng. Explain. a 2E0r 1. CC

19.2-2. Diffusion of Ammonia in an Aqueous Solution. An ammonia (A)-water (B) solu- tion at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface. The concentration of ammonia in the organic phase is held constant and is such that the equilibrium concentration of ammonia in the water at this sur- face is 2.0 wt % ammonia (density of aqueous solution 991.7 kg/m) and the concen- tration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density 961.7 kg/m). Water and the organic are insoluble in each other. The diffu- sion coefficient of NH, in water is 1.24 x 10 m2/s. (a) At steady state, calculate the flux NA in kg mol/s m2. (b) Calculate the flux Ng. Explain. a 2E0r 1. CC

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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19.2-2. Diffusion of Ammonia in an Aqueous Solution. An ammonia (A)-water (B) solu- tion at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface. The concentration of ammonia in the organic phase is held constant and is such that the equilibrium concentration of ammonia in the water at this sur- face is 2.0 wt % ammonia (density of aqueous solution 991.7 kg/m) and the concen- tration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density 961.7 kg/m). Water and the organic are insoluble in each other. The diffu- sion coefficient of NH, in water is 1.24 x 10 m2/s. (a) At steady state, calculate the flux NA in kg mol/s m2. (b) Calculate the flux Ng. Explain. a 2E0r 1. CC
Transcribed Image Text:19.2-2. Diffusion of Ammonia in an Aqueous Solution. An ammonia (A)-water (B) solu- tion at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface. The concentration of ammonia in the organic phase is held constant and is such that the equilibrium concentration of ammonia in the water at this sur- face is 2.0 wt % ammonia (density of aqueous solution 991.7 kg/m) and the concen- tration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density 961.7 kg/m). Water and the organic are insoluble in each other. The diffu- sion coefficient of NH, in water is 1.24 x 10 m2/s. (a) At steady state, calculate the flux NA in kg mol/s m2. (b) Calculate the flux Ng. Explain. a 2E0r 1. CC
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