The rate equation of ion adsorption

The calculation of the flow of surfactant anions to the surface of a bubble can be performed under the condition of electrostatic retardation of adsorption kinetics. It follows from Eq. (7.30), 

The values V /sk, and r refer to the equilibrium values of the Stem potential and the surface concentration, respectively. To replace the concentration c(0) from Eq. (7.27), the adsorption isotherm (7.10) can be used, 

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