The rate constant for a first order reaction whose half life is 480 sec, is :

Options

A. `1.44xx10^(-3)s^(-1)`
B. `1.44s^(-1)`
C. `0.72xx10^(-3)s^(-1)`
D. `2.88xx10^(-3)s^(-1)`

Answer

A

Explanation

`k=(0.693)/(t_(1//2)) = (0.693)/(480) =1.44 xx10^(-3)S^(-1)`