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What is half-life period? How is it rela...

What is half-life period? How is it related to the rate constant for a first order reaction?

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Knowledge Check

  • The half life of first order reaction is :

    A
    independent of rate constant
    B
    independent of initial concentratio
    C
    dependent on initial concentration
    D
    dependent on temperature

  • Half-life period of any first order reaction is

    A
    directly proportional to initial concentration of reactant
    B
    half of the rate constant
    C
    same for all reactions
    D
    independent of initial concentration of reactant

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    One-fourth of reaction is completed in 32 min. What is the half-life period of this reaction? How is half-life period related to initial concentration for a second order reaction?

    Derive an expression for the rate constant of first order reaction. The rate constant of first order reaction is 0.346" min"^(-1) . What is the half-life?

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