Abstract
Rates of permeation of water and electrolytes through an anion exchange membrane, prepared by the adsorption of a polycation on preformed collodion membrane, were measured. The experimental results are in agreement with a theory presented previously. An equation for the salt-concentration dependence of the reflection coefficient was derived and compared with both the theory of Kedem and Katchalsky and the experimental data. The agreement between the two theories and experiments is good. It is shown quantitatively that the total entropy production in negative osmosis is positive, because the absolute value of the entropy production due to solute is very much larger than that due to water.
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