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← ScienceWhich outcome occurs when platinum is heated catalyzing ammonia oxidation?
A)Nitric oxide production increases rapidly✓
B)Ammonia concentration remains unchanged longer
C)Platinum surface area decreases sharply
D)Reaction equilibrium shifts leftward slightly
💡 Explanation
Higher temperatures favor faster surface reactions, because increased thermal energy directly powers the Langmuir-Hinshelwood mechanism on the platinum surface, promoting faster conversion to nitric oxide. Therefore nitric oxide production quickly increases, rather than a changed reaction balance or physical changes in the catalyst
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