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Define activation energy of a reaction....

Define activation energy of a reaction.

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Knowledge Check

  • In the presence of an enzyme, the activation energy of a reaction

    A
    Increases
    B
    Decreases
    C
    Remains same
    D
    Cannot be predicted

  • Statement 1: Lower the activation energy, faster is the reaction. Statement 2 : Catalyst does not affect activation energy of the reaction.

    A
    Statement 1: is true, Statement 2 is true, and Statement 2 is a correct explanation of statement 1
    B
    Both statement are true but statement 2 is not a correct explanation for statement 1
    C
    Statement 1 is true and statement 2 is false
    D
    Statement 1 is false and Statement 2 is true

  • Assertion : If the activation energy of a reaction is zero , temperature will have no effect on the rate constant . Reason : Lower the activation energy , faster is the reaction .

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion .
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion
    C
    If assertion is true but reason is false .
    D
    If the assertion and reason both are false .