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← ScienceWhich outcome reduces a substance's half-life because of catalyst presence?
A)Lowered activation energy requirement✓
B)Increased equilibrium product concentration
C)Decreased forward reaction rate constant
D)Unchanged reverse reaction rate constant
💡 Explanation
A catalyst speeds the rate determining step; lower activation energy requirement accelerates reactant consumption, a faster rate constant will apply because catalysts provide alternative, transition state complexes, therefore the half‐life is lowered, rather than other reaction properties such as product equilibria.
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