For Engineers · Nernst Equation
Nernst Equation for a battery cell
Built for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed. Simulate a battery cell live below — adjust the inputs and watch it respond, right in your browser.
Nernst Equation / Galvanic CellLive
voltage from concentration
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A battery's voltage depends on concentrations, not just chemistry. The Nernst equation E = E° − (RT/nF)·lnQ shows the cell voltage sliding as reactants are consumed — and reaching zero when the reaction hits equilibrium. Educational tool.
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Cell voltage E1.100 V
Thermal term RT/nF0.0128 V
Spontaneous?yes (E > 0)
Governing equation
Reading this result: At Q ≈ 1 the log term nearly vanishes, so the cell sits close to its standard EMF of 1.10 V.
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- Is this good for engineers?
- Yes — this version of "Nernst Equation for a battery cell" is framed for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.