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Which consequence results when the pre-exponential factor in the Arrhenius equation diminishes for platinum catalytic converters?

A)Increased CO oxidation onset temperature
B)Lower N₂O formation during catalysis
C)Deactivation due to sulfur poisoning
D)Enhanced conversion across all temperatures

💡 Explanation

Elevated temperatures result from decreased reaction frequency factors because diminished active sites limit successful collisions; therefore, higher temps are required to maintain conversion rates rather than lower N₂O, which relates to selectivity influencing other reaction characteristics.

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