The gas ammonia is diffusing at steady state through nitrogen by equimolar counterdiffusion in a conduit 1.22 m long at 25 °C and a total pressure of 101.32 kPa. The partial pressure of ammonia is 25.33 kPa at the left end and 5.066 kPa at the other end. The cross section of the conduit is in the shape of a circle, the diamater being 0.0610 m at the left end and tapering uniformly to 0.0305 m at the right end. Calculate the molar flow rate of ammonia in kg mol/s. The diffusivity DAB = 0.230 × 10-4 m2/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
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The gas ammonia is diffusing at steady state through nitrogen by equimolar
counterdiffusion in a conduit 1.22 m long at 25 °C and a total pressure of 101.32 kPa. The partial pressure of ammonia is 25.33 kPa at the left end and 5.066 kPa at the other end. The cross section of the conduit is in the shape of a circle, the diamater being 0.0610 m at the left end and tapering uniformly to 0.0305 m at the right end. Calculate the molar flow rate of ammonia in kg mol/s. The diffusivity DAB = 0.230 × 10-4 m2/s.

 

 

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