NEET Chemistry
NEETChemistryElectrochemistryClass 12

I keep getting “Nernst equation” questions wrong in Electrochemistry. What's the trap?

using standard potentials when concentrations aren't 1 M.

The usual trap: using standard potentials when concentrations aren't 1 M. How to avoid it: ΔG = −nFE links free energy to cell voltage. Go back to the definition — adjusts electrode potential for non-standard concentrations.

Key point

Nernst equation

Common mistake

using standard potentials when concentrations aren't 1 M.

Memory tip

ΔG = −nFE links free energy to cell voltage.

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