Key term for Edexcel GCSE Chemistry, used in Chemical Cells and Fuel Cells.
A measure of the energy transferred per unit charge between two points in a circuit; in a cell, it represents the difference in the ability of two electrodes to release electrons.
Potential difference (voltage) appears in Edexcel GCSE Chemistry revision content for Transition Metals, Quantitative Analysis and Equilibria, especially Chemical Cells and Fuel Cells and Chemical Cells.
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