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Nernst’s Equation for Cell EMF

Nernst’s Equation for Cell EMF

For a cell in which the net cell reaction involving n electrons is,

The Nernst equation is written as,

Where, .

The is called the standard cell potential.

or

At 298 K, above eq. can be written as,

or

It may be noted here, that the concentrations of A, B, C and D referred in the eqs. are the concentrations at the time the cell emf is measured.

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