Abstract
The permeability coefficients of membranes composed of a series-array of elements are evaluated from the coefficients of the membrane elements. The calculations are carried out for stationary flows and assume continuity of chemical potentials across the interfaces between elements. Ex-tensive use is made of " corresponding quantities ", representing concentrations, pressures and electromotive forces in the membrane in terms of those of aqueous solutions equilibrated with the examined volume element of the membrane phase. It was found that the overall resistances (reciprocal permeability coefficients) are not generally composed by addition of those of the elements. Moreover, the system is not described by the linear phenomenological equations, unless the flows are very slow. Polarity of flow is to be expected in many cases. A few numerical examples demonstrate the combination of the elementary coefficients and the polarity of flows. These examples are based on the model of Teorell and Meyer-Sievers.
Original language | English |
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Pages (from-to) | 1941-1953 |
Number of pages | 13 |
Journal | Transactions of the Faraday Society |
Volume | 59 |
DOIs | |
State | Published - 1 Jan 1963 |
Externally published | Yes |
ASJC Scopus subject areas
- General Engineering
- General Physics and Astronomy
- Physical and Theoretical Chemistry