Formula verified · Deterministic calculation

Nernst Equation Calculator

Calculate cell potential from standard potential, absolute temperature, electron count and positive reaction quotient.

Standard potential (V)Temperature (K)Electron countReaction quotient

Cell potential1 V

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Result methodology

Deterministic calculation using the displayed certified chemistry formula. Nernst Equation = 1

How this calculator works

E = E° - (RT/nF) ln Q.

Formula

E=E°-(RT/nF)lnQ

Cell potential from the Nernst equation with SI constants.

Worked example

Verified example is a verified test case used by the calculation engine.

Assumptions and limitations

Temperature, electron count and reaction quotient must be positive.
R and F use SI constants.
Inputs describe the chosen reaction convention.

Methodology & sources

This calculator uses deterministic, versioned calculation logic. The formula and verified examples above are part of the calculation definition used by CalcuMint.

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Frequently asked questions

Why must Q be positive?

The natural logarithm requires a positive reaction quotient.

What happens when Q equals 1?

ln(1)=0, so E equals the standard potential.