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← ScienceWhich outcome occurs when electrolyte concentration diminishes in electrochemical double-layer capacitor (EDLC)?
A)Reduced capacitance due to lower ion density✓
B)Increased leakage current from Faradaic reactions
C)Higher equivalent series resistance from ohmic losses
D)Decreased breakdown voltage from increased field
💡 Explanation
When electrolyte ion concentration decreases, it diminishes the number of ions accumulating at the electrode-electrolyte interface, thus decreasing the capacitance constant because capacitance depends on charge density. Therefore a reduced capacitance results rather than an increase leakage current, higher ESR, or decreased breakdown voltage which rely on different effects.
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