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← ScienceWhich outcome occurs when a catalyst additive reduces activation energy?
A)Increased reaction rate constant observed✓
B)Equilibrium shifts to reactant side
C)Enthalpy change becomes more positive
D)Pre-exponential factor decreases significantly
💡 Explanation
A lower activation energy increases the reaction rate constant because Arrhenius equation dictates an exponential relationship; therefore, higher rate observes rather than thermodynamic shifts or pre-exponential changes, all under the same standard conditions.
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