For K-12 Students · Nernst Equation
Nernst Equation for a phase change
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a phase change live below — adjust the inputs and watch it respond, right in your browser.
Nernst Equation / Galvanic CellLive
voltage from concentration
Controls
Presets
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.
Data Inspector
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.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
More with Nernst Equation
Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Nernst Equation for a phase change" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.