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← ScienceWhich kinetic consequence is observed when catalyst doubles?
A)Activation energy remains nearly unchanged✓
B)Equilibrium constant quickly decreases
C)Reverse reaction rate diminishes faster
D)Overall reaction slows exponentially fast
💡 Explanation
When a catalyst doubles, Ea is unchanged because a catalyst provides an alternative pathway, lowering (but not eliminating) the activation, therefore the activation energy approaches an unchanging value rather than a rapid decrease under kinetic control.
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