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Half-life period of a first-order reacti...

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

A

`5. 0 xx 10^(-3) s^(-1)`

B

`0.5 xx 10^(-2) s^(-1)`

C

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

D

`5.0 xx 10^(-2) s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
c
`t_(1//2) = (0.693)/(k) , k = (0.693)/(1386) = 0.5 xx 10^(-3) s^(-1)`.
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