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Which outcome occurs when platinum nanoparticles catalyze hydrogen oxidation?

A)Lower effective activation energy emerges
B)Increased substrate structural vibrational modes
C)Higher electrode surface charge develops
D)Decreased observed reaction entropy results

💡 Explanation

A lower energy barrier results because catalytic adsorption weakens hydrogen bonds, specifically through the Sabatier principle optimising chemisorption; therefore, a net lower activation energy arises, rather than modified vibrational characteristics alone.

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