Question

We see that reduction potential and cell potentials are tabulated under standard conditions. We have seen that under non-standard conditions. How do we find the non-standard cell potential when dealing with different temperatures and product/reactant concentrations? What happens to the cell potential when there is far more product than reactant, or far more reactant than product? What happens to the cell potential as temperature is increased?

Answer 1

In non-standard conditions, the Nernst condition is utilized to figure cell possibilities. It adjusts the standard cell potential to represent temperature and groupings of the response members

Ecell=E∘cell−(0.0591 V/n)logQ

E∘cell=(RT/nF)lnK

Because temperature term is negative (— 2.303 RT/nF ) in the Nernst equation. So if the temp. Increases emf or electrode potential decreases

small values of Qp describe systems in which there is far more reactant than the product.