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Which consequence results when irreversible catalyst poisoning occurs inside catalytic converters?

A)Reduced NOX to Nitrogen conversion
B)Increased catalyst surface area roughness
C)Enhanced carbon monoxide oxidation rate
D)Lower hydrocarbon combustion activation energy

💡 Explanation

Permanent catalyst poisoning obstructs active sites, impeding catalytic activity because irreversible adsorption blocks reaction pathways; therefore NOX reduction is diminished, rather than improved catalytic activity because adsorption alters selectivity under transient conditions.

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