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    Chemistry A-Level

    Role of activation energy and the pre-exponential factor

    What Role of activation energy and the pre-exponential factor means in Chemistry A-Level, as defined for OCR.

    Definition of Role of activation energy and the pre-exponential factor

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    Reference: OCR

    A is the pre-exponential factor and Ea the activation energy in J mol⁻¹; a larger Ea makes the exponent more negative and k smaller at a given T.
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