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← ScienceWhich outcome occurs when tripling catalyst surface area in a reaction with unchanging rate constants?
A)Reaction rate triples initially, remains constant✓
B)Activation energy threshold significantly decreases
C)Equilibrium constant value changes significantly
D)Reverse reaction rate becomes insignificantly lowered
💡 Explanation
The rate of reaction triples because increasing catalyst surface area directly increases the number of active sites via the mechanism of surface adsorption. Therefore, the reaction rate increases, and the rate constants remain unchanged rather than the equilibrium being significantly altered.
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