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← ScienceWhich adjustment lowers the activation energy barrier in catalytic converters?
A)Increased surface area via metal nanoparticles✓
B)Higher operating temperature decreases poisoning
C)Increased exhaust flow exceeding design limits
D)Lower pressure favors oxidation reactions overall
💡 Explanation
Increased surface area lowers the activation energy through heterogenous catalysis because more reactant molecules can adsorb onto the catalyst's surface, therefore facilitating bond breaking and product formation, rather than having reactant molecules collide in the gas phase.
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