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Dual diffusion—reaction coupling in first order multicomponent systems

✍ Scribed by H.L. Toor

Publisher
Elsevier Science
Year
1965
Tongue
English
Weight
957 KB
Volume
20
Category
Article
ISSN
0009-2509

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✦ Synopsis

The problem of unsteady, unidirectional diffusion with complex first order reversible chemical reactions in an isothermal, isobaric multicomponent system of constant molar or mass density is investigated. In this system components are coupled by chemical reactions as well as by diffusion and in general the equations cannot be. uncoupled by a transformation of concentration coordinates. Solutions are obtained by a separation of variable matrices technique from which it is found that an ideal system (e.g., a mixture of perfect gases) near equilibrium is stable. If all of the reactants are infinitely dilute, or Knudsen diffusion takes place the system is always stable. A multicomponent solution represents one of the possible matrix generalizations of the solution to the analogous binary problem with a single irreversible reaction.

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