Question

what do you understand by half - life of reaction?

Answer 1

Half-lives. The half-life of a reaction, t1/2, is the amount of time needed for a reactant concentration to decrease by half compared to its initial concentration. Its application is used in chemistry and medicine to predict the concentration of a substance over time.

Answer 2

hii...

the half life of a reaction is defined as the time during which the concentration of a reactant is reduced to one half of its initial value or the time in which half of the reaction is completed..

it is generally denoted by t1/2. the shorter the half life period , faster is the reaction...

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hope this helps !