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← ScienceWhich risk increases during fuel cell operation at excessively low reactant flow rates?
A)Catalyst surface area increases rapidly
B)Uniform current distribution across cell
C)Rate of local electrode corrosion rises✓
D)Electrolyte conductivity improves significantly
💡 Explanation
Reduced reactant flow starves the anode, altering the electrode potential; because oxidation kinetics shift unfavorably, interfacial corrosion via the Nernst potential accelerates, rather than producing desirable products; therefore, corrosion increases rather than improves cell operation.
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