A reaction taking place in an electrochemical cell and the equilibrium constant for the same reaction is given. The value of cell potential E for the same reaction is to be calculated. Concept introduction: The relationship between reduction potential and standard reduction potential value and activities of species present in an electrochemical cell at a given temperature is given by the Nernst equation. The value of E cell is calculated using Nernst formula, E = E ° − ( R T n F ) ln ( Q ) At room temperature the above equation is specifies as, E = E ° − ( 0.0591 n ) log ( Q ) This relation is further used to determine the relation between Δ G ° and K , Δ G ° and E ° cell . To determine: The value of cell potential E for the given cell reaction.

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Chapter 17, Problem 88E

Interpretation Introduction

Interpretation:

A reaction taking place in an electrochemical cell and the equilibrium constant for the same reaction is given. The value of cell potential E for the same reaction is to be calculated.

Concept introduction:

The relationship between reduction potential and standard reduction potential value and activities of species present in an electrochemical cell at a given temperature is given by the Nernst equation.

The value of Ecell is calculated using Nernst formula,

E=E°−(RTnF)ln(Q)

At room temperature the above equation is specifies as,

E=E°−(0.0591n)log(Q)

This relation is further used to determine the relation between ΔG° and K , ΔG° and E°cell .

To determine: The value of cell potential E for the given cell reaction.

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