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Rate of first order reaction $\mathrm{A} \rightarrow$ product is $0.01 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}$, calculate rate constant if concentration of reactant is $0.2 \mathrm{M}$ ?
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The correct answer is:
$0.05 \mathrm{sec}^{-1}$
$\mathrm{r}=\mathrm{K}(\mathrm{A})$
$0.01=K(0.2)$
$\mathrm{K}=\frac{0.01}{0.20}=0.05 \mathrm{sec}^{-1}$
$0.01=K(0.2)$
$\mathrm{K}=\frac{0.01}{0.20}=0.05 \mathrm{sec}^{-1}$
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