Which outcome occurs when exhaust gases from a catalytic converter lack sufficient thermal energy?

💡 Explanation

When exhaust gas lacks sufficient thermal energy, the catalytic converter's catalyst activity decreases because reaction rates depend exponentially on temperature through Arrhenius equation, hindering oxidation of CO. Therefore reduced conversion of CO to CO2 results, rather than NOx increase, poisoning, or thermal runaway which demand higher catalyst temperature or alternative mechanisms.

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