Physical Chemistry
Physical Chemistry
2nd Edition
ISBN: 9781285969770
Author: Ball
Publisher: Cengage
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Chapter 8, Problem 8.57E
Interpretation Introduction

Interpretation:

The value of ϕ for different concentrations of K+ in the cell is to be stated.

Concept introduction:

The Gibbs-Donnan effect is a phenomenon that occurs because of differing concentrations of ions across a semipermeable membrane, like a cell wall. Charge balance is maintained by other ions, like proteins. The differing concentrations set up a concentration cell whose voltage is denoted by ϕ. The relation of voltage with different concentrations is given below.

ϕ=RTflnclow+chighchigh

Where clow and chigh are the lower and higher concentrations of ions, respectively.

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Chapter 8 Solutions

Physical Chemistry

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