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← ScienceWithin a fuel cell, enhanced proton transfer occurs because of which mechanism?
A)Grotthuss mechanism through hydrogen bonds✓
B)Electron tunneling in metal hydrides
C)Covalent bonding within water clusters
D)Ionic transfer between electrode surfaces
💡 Explanation
Proton transfer occurs utilizing the Grotthuss mechanism involves hydrogen bond rearrangements. Hydrogen ions hop between water molecules successively because this creates a lower energy pathway, therefore enhances proton conductivity, rather than direct ionic diffusion.
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