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← ScienceWhich 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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