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Questions  >>  CBSE XII  >>  Chemistry  >>  Chemical Kinetics
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Explain Half Life of a reaction.

Explain Half Life of a reaction.

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A)

Half- life of a reaction: The time taken for a reaction, when  half  of the starting material has reacted is called half- life of a reaction.

 For first order reaction $t_{\large\frac(1}{2}}  = \large\frac{0.693}{K}$ 

 where k is rate constant.

It is independent of initial concentration for first order reaction.

 
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It is the time in which the concentration of reactant reduce to half of its initial con.
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