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Which outcome occurs when increased back pressure exceeds catalytic convertor equilibrium?

A)Reduced NOx scrubbing efficiency
B)Increased catalyst surface area
C)Enhanced hydrocarbon conversion rate
D)Decreased exhaust temperature output

💡 Explanation

Reduced NOx scrubbing happens because Le Chatelier's principle dictates that increased product concentration from back pressure favors reverse reactions, diminishing equilibrium and the effectiveness of the catalyst, therefore less NOx is scrubbed, rather than an increased conversion rate.

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