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← ScienceWhich factor decreases when a catalyst lowers activation energy?
A)Transition state energy barrier✓
B)Enthalpy change of reaction
C)Reactant thermodynamic stability
D)Product formation equilibrium constant
💡 Explanation
Catalysts lower observed activation energy by providing an alternate reaction pathway with a lower energy transition state barrier; therefore, the energy barrier is decreased by the catalyst, rather than the reaction equilibrium or thermodynamic properties of the reactants.
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