Which consequence results when increased energy input surpasses catalyst optimum?

💡 Explanation

Selectivity decreases via catalyst poisoning from overheating. Overheating introduces defects, triggering undesired side reactions, because the *Arrhenius Equation* relates rate and temperature; therefore, selectivity diminishes with rising temperature, rather than enhancing purity or lifespan.

• Which effect occurs when increasing dopant concentration in extrinsic semiconductors?
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