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← ScienceWhich consequence results when a catalyst degrades surface reaction rate constants?
A)Products attain non-equilibrium concentrations
B)Activation energy remains artificially low
C)Overall reaction rate decreases✓
D)Reaction order estimation becomes impossible
💡 Explanation
When catalyst surface sites deactivate, lowering available surface area, the rate constant decreases, therefore, the overall catalytic reaction slows because the mass action rate is directly proportional to catalytic effectiveness, rather than altering equilibrium concentrations.
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