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Which outcome occurs when an oxidation catalyst loses surface area?

A)Lower overall reaction conversion efficiency
B)Increased average exhaust gas temperature
C)Decreased activation energy needed
D)Higher equilibrium partial-pressure of reactants

💡 Explanation

Lower surface area reduces available active sites; because chemisorption scales directly with catalyst area, the oxidation reaction rate decreases. This is due to decreased active sites rather than a higher needed activation energy and lowers catalytic conversion, therefore reactions stall, rather than going to completion.

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