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← ScienceWhich outcome increases risk when an oxidation catalyst degrades?
A)Runaway reaction exotherm rate increase✓
B)Selective adsorption sites remain normal
C)Heat transfer rates remain constant
D)Activation energy barrier will plateau
💡 Explanation
Increased risk of a runaway reaction exothermic rate results when the catalyst degrades because increased surface area might be exposed, increasing reaction rates dramatically via surface catalysis, rather than decreasing rates as one might expect.
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