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← ScienceWhich consequence results when a high catalytic support energy reduces dispersion?
A)Increased required activation energy of reaction
B)Faster product formation via equilibrium shift
C)Decreased substrate adsorption availability✓
D)Enhanced molecular adsorption rate constant
💡 Explanation
Decreased substrate adsorption availability occurs because a high support energy favors catalyst particle agglomeration via Ostwald ripening, thereby decreasing surface area, rather than promoting higher reaction kinetics or better adsorption independently of surface structure. Therefore, overall conversion drops.
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