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← ScienceWhich outcome occurs when a fuel cell reaches maximum power transfer?
A)Voltage approaches thermal equilibrium level
B)Internal resistance matches system reactance
C)Electrolyte diffusion rate is minimized
D)Overpotential losses dominate total voltage✓
💡 Explanation
When maximum power transfer is achieved, the overpotential increases exhaustively. Charge transfer resistance dominates because the activation losses become significant, therefore terminal voltage drops considerably, rather than maintaining optimal electrolytic or thermal output.
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