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← ScienceWhich outcome limits the electrolytic production rate when overpotential increases within a fuel cell?
A)Decreased electrode surface polarization
B)Elevated mass transport limitations✓
C)Enhanced charge-transfer kinetics
D)Reduced activation energy requirement
💡 Explanation
Increased overpotential enhances the reaction rate initially; however, mass transport limitations become dominant because reactants cannot reach electrode surfaces quickly enough; therefore, the production rate plateaus, rather than accelerating uncontrollably given charge kinetics.
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