Half - life period of a first order ...

Half - life period of a first order reaction is 1386s. The specific rate constant of the reaction is

A

`5.0xx10^(-2)s^(-1)`

B

`5.0 xx 10^(-3)s^(-1)`

C

`0.5xx10^(-2)s^(-1)`

D

`0.5xx10^(-3)s^(-1)`

Verified by Experts

The correct Answer is:

D

`K= (0.693)/(t_(1//2))=(0.693)/(1386)=0.5xx10^(-3) S^(-1)`

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