Consider the radial diffusion of a gaseous species (A) through the wall of a plastic tube (B), and allow for chemical reactions that provide for the depletion of A at a rate N' A (kmol ·s-1. m-3 ). Derive a differential equation that governs the molar concentration of species A in the plastic.

Consider the radial diffusion of a gaseous species (A) through the wall of a plastic tube (B), and allow for chemical reactions that provide for the depletion of A at a rate N' A (kmol ·s-1. m-3 ). Derive a differential equation that governs the molar concentration of species A in the plastic.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.

Question

• Consider the radial diffusion of a gaseous species (A) through the wall of a
plastic tube (B), and allow for chemical reactions that provide for the
depletion of A at a rate N' A (kmol · s-1. m-3 ). Derive a differential
equation that governs the molar concentration of species A in the plastic.

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