Question

Define half-life period of a reaction. Derive the relation between the half-life
period and rate constant of a first order reaction​

Answer 1

Answer:

Half-life period is defined as the time interval in which the reactants concentration reduces to half of its initial value. The half-life period of a first order reaction is a constant quantity and is related to the rate constant k as: Half life period= (ln 2)/ k.

Answer 2

The time at which the initial concentration of reactants is reduced to half is called as half life time of reaction.

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