Electrochemical Cell Voltage (E°cell)

Calculate standard cell potential: E°cell = E°cathode − E°anode. Predict spontaneity from ΔG° = −nFE°.

 
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Physical Constants Reference
ConstantSymbolValue
Speed of lightc2.99792458×10⁸
Planck's constanth6.62607015×10⁻³‴
Boltzmann constant1.380649×10⁻²³
Avogadro's numberNₐ6.02214076×10²³
Gravitational constantG6.6743×10⁻¹¹
Gas constantR8.31446
Elementary chargee1.602176634×10⁻¹⁹
Electron massmₑ9.1093837015×10⁻³¹
Proton massmₚ1.67262192369×10⁻²⁷
Fine-structure constantα7.2973525693×10⁻³
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How It Works

Calculate standard cell potential: E°cell = E°cathode − E°anode. Predict spontaneity from ΔG° = −nFE°

Each component has a specific meaning:

  • ΔG° = −nFE° — The δg° = −nfe° recorded for the patient or scenario being assessed.

Note: Interpret the cell voltage e° result against the clinical thresholds and context described above.

How to Use

Enter the ΔG° = −nFE° for the patient or scenario you are assessing. Calculate standard cell potential: E°cell = E°cathode − E°anode. Predict spontaneity from ΔG° = −nFE°. Use the cell voltage e° result to inform your clinical assessment.

Frequently Asked Questions