Key term for Edexcel GCSE Chemistry, used in Chemical Cells and Fuel Cells.
The electrical 'pressure' created by the difference in charge between two electrodes, allowing current to flow in a circuit.
Potential difference appears in Edexcel GCSE Chemistry revision content for Transition Metals, Quantitative Analysis and Equilibria, especially Chemical Cells and Fuel Cells and Hydrogen-Oxygen Fuel Cells.
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