Chemistry - Chemical Kinetics Question with Solution | TestHub

$2{\text{N}}_2{\text{O}}_5\to 4\text{N}{\text{O}}_2+{\text{O}}_2$

From the unit of rate constant it is clear that the reaction follow first order kinetics.

Hence by rate law equation,$\text{r}=\text{k}\left[{\text{N}}_2{\text{O}}_5\right]$

Where$\text{r}=1.02\times {10}^{-4},\text{k}=3.4\times {10}^{-5}$

$1.02\times {10}^{-4}=3.4\times {10}^{-5}\left[{\text{N}}_2{\text{O}}_5\right]$

$\left[{\text{N}}_2{\text{O}}_5\right]=3\text{M}$