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Define rate of reaction....

Define rate of reaction.

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"Rate of a reaction is the change in the amount or concentration of any one of the reactants or products per unit time ".
`A to B `
The rate of this reaction is given by
`"Rate "=-(d[A])/(dt)=+(d[B])/(dt)`
Where . [A] - concentration of A
[B]- concentration of B
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Knowledge Check

  • Enzymes increase the rate of reactions.

    A
    By lowering activation energy
    B
    By increasing activation energy
    C
    By changing equilibrium constant
    D
    By forming enzyme substrate complex

  • Assertion: rate of reaction doubles when the concentration of the reactant is doubles if it is a first order reaction. Reason: rate constant also doubles

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

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