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← ScienceWhich outcome occurs with higher applied electrode potentials during electrolysis?
A)Increased reactant concentration at electrodes
B)Elevated overpotential at electrode surfaces✓
C)Decreased conductivity affects mass balance
D)Reduced activation energies of half-reactions
💡 Explanation
Elevated electrode potential causes increased overpotential due to activation polarisation because electrode kinetics dominate. This results in more energy required, therefore reaction occurs at more extreme voltages rather than at the standard electrode potential.
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