chemistry 12th class cbse notes

Nernst Equation

It relates electrode potential with the concentration of ions. Thus, the reduction potential increases with the increase in the concentration of ions. For a general electrochemical reaction of the type.

Nernst Equation

Nernst equation can be given as

Nernst Equation

Nernst Equation

Substituting the values of R and F we get

Nernst Equation

Application of Nernst Equation

Equilibrium Constant from Nernst Equation:

For a Daniel cell, at equilibrium

Nernst Equation

But at equilibrium,

Nernst Equation

Nernst Equation

In general,

Nernst Equation

Nernst Equation

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