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← ScienceWhich outcome results when adding a catalyst to a reaction?
A)Reaction equilibrium constants are unchanged.✓
B)Overall reaction enthalpy is significantly altered.
C)Activated complex energy barrier is increased.
D)Product yield at outset decreases greatly.
💡 Explanation
Adding a catalyst provides an alternate reaction pathway with a lower activation energy via transition state stabilization; this enhances the reaction rate because the same equilibrium position arises out, therefore equilibrium constants remain the same, rather than enthalpy changing.
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