Catalysis

AP Chemistry· difficulty 4/5

A catalyst increases reaction rate by

  • A

    Lowering EaE_a (providing alternative pathway)

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  • B

    Increasing concentration

  • C

    Increasing ΔH\Delta H

  • D

    Raising temperature

Explanation

Catalysts provide an alternate mechanism with lower activation energy. They don't change ΔH or thermodynamics.

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