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← ScienceWhich outcome occurs when high-energy radiation impacts a catalytic converter?
A)Decreased conversion efficiency long-term✓
B)Increased precious metal surface area
C)Endothermic reaction rate increases rapidly
D)Exhaust gas back-pressure decreases linearly
💡 Explanation
High-energy radiation causes lattice defects via the *Wigner effect*, thus diminishing active sites, because energetic particles displace catalyst atoms thereby reducing active catalytic area, therefore the overall conversion efficiency suffers rather than improving metal surface area or benefically affecting reaction kinetics immediately.
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