The half-life of a first order reaction ...

The half-life of a first order reaction is found `1.26 xx 10^(13) sec`. The rate constant of the reaction is:

A

`k= 1.5 xx 10^(-15) sec^(-1)`

B

`k = 5.5 xx 10^(-14) sec^(-1)`

C

`k = 5.1 xx 10^(-15) sec^(-1)`

D

`K =1.5 xx 10^(-13) sec^(-1)`

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