The rate constant for a first order reaction is $7.0 \times 10^{-4} \ s^{-1}$. If initial concentration of the reactant is $0.080 \ M$,what is the half-life of the reaction?
- A$990 \ s$
- B$79.2 \ s$
- C$10.10 \times 10^{-4} \ s$
- D$12375 \ s$
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View SolutionFor the first order reaction with rate constant $k$,which expression gives the half-life period? (Initial concentration $= a$)
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