Which consequence results when a platinum catalyst weakens during cyclical use in an exhaust converter?

💡 Explanation

A weakened catalyst reduces activity because decreased *activation energy* causes lowered reaction rates within the converter; therefore hydrocarbons and carbon monoxide conversion decreases, rather than increases to sulfur dixodide or improved NOx conversion, under constant temperature constraints.

• Which consequence results during water electrolysis using alkaline electrolyte?
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• Which outcome arises during rapid sublimation in integrated electronics?
• Which phenomenon limits the rigidity in crosslinked polymer networks?
• Which mechanism amplifies an excimer laser's power output?