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CHEMISTRY / ELECTROCHEMISTRY

Equilibrium Constant from Cell Potential Calculator

Calculate the thermodynamic equilibrium constant implied by a standard cell potential. Review the equation, substituted values, assumptions, and result in one guided chemistry workspace.

  • 01 Calculated in this tab
  • 02 Values stay in this browser tab
  • 03 Use boundary

Conversion input

Known value

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Calculation path

Calculate the thermodynamic equilibrium constant implied by a standard cell potential. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.

Calculation path

ln K=nFE_standard/(RT)

What you provide

What you provide

  • Electrons transferred, using the same scenario as the other inputs
  • Standard cell potential expressed in V, using the same scenario as the other inputs
  • Absolute temperature expressed in K, using the same scenario as the other inputs

What you receive

What you receive

  • Equilibrium constant K from the stated equation
  • A symbolic formula plus substituted working with your values
  • Visible assumptions, field guidance, and an authoritative learning reference

Use boundary

Choose the maximum decimal places shown. This does not increase source accuracy.

Potential is standard for the balanced reaction and thermodynamic activities define the equilibrium constant.

Use internally consistent units and retain extra precision when carrying the result into another calculation.

Reviewed reference factors

Reviewed reference factors