For a first-order reaction,the half-life period is $69.3 \ s$. If the concentration of the reactant is $0.10 \ mol \ L^{-1}$,what will be the rate of the reaction?
- A$10^{-4} \ mol \ L^{-1} \ s^{-1}$
- B$10^{-3} \ mol \ L^{-1} \ s^{-1}$
- C$10^{-1} \ mol \ L^{-1} \ s^{-1}$
- D$6.93 \times 10^{-1} \ mol \ L^{-1} \ s^{-1}$
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