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Mass flux coupling by confined equilibrium reaction
Author(s) -
Verhoff F. H.,
Sundaresan K. R.
Publication year - 1973
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450510110
Subject(s) - chemical equilibrium , diffusion , reaction–diffusion system , chemical reaction , thermal diffusivity , coupling (piping) , equilibrium constant , chemistry , chemical physics , chemical species , thermodynamics , mass transport , flux (metallurgy) , mass flux , mass transfer , membrane , reaction rate , coupling reaction , coupling constant , physics , materials science , catalysis , organic chemistry , quantum mechanics , biochemistry , metallurgy , engineering physics
Various physical systems with either phase boundaries or semi‐permeable membranes can give rise to a confined chemical reaction. An analysis was performed to show the strong and potentially important effect of this confined reaction on chemical species diffusion through the region of reaction. The reaction was treated as one near equilibrium in order to obtain an analytical solution and to illustrate the strong coupling of fluxes caused by the reaction. Some generalities, e. g., facilitated diffusion of a single species transferring, were deduced using the above conditions and assumptions. These generalities are necessarily valid only for a single near equilibrium reaction with constant diffusivity of non‐diffusing species. Three examples were solved to illustrate the strong coupling of mass fluxes.