Nernst equation (cell) (Ecell = E°cell − (RT/nF) ln Q)
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Ecell = E°cell − (RT/nF) ln Q
What each symbol means
| Symbol | What it stands for |
|---|---|
| Q | Reaction quotient for cell reaction as written (activities) |
| E_{\mathrm{cell}} | Instantaneous cell EMF (V) |
When to use this
Same T throughout; Q uses actual concentrations/pressures relative to standard state.