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← ScienceWithin a water electrolysis system, which outcome immediately follows catalyst poisoning?
A)Inefficient electron tunneling dominates
B)Increased undesirable molecule recombination
C)Accelerated oxidation of the anode
D)Decreased formation activated complex✓
💡 Explanation
Catalyst poisoning impairs chemical bonding and therefore causes decreased formation of the activated complex which reduces energy. Because the activated complex becomes disfavored at reaction energies, less H2 and O2 are produced rather than changing conductivity through electron tunneling, or uncontrolled metal erosion.
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