Chemistry - Chemical Kinetics Question with Solution | TestHub

$2\text{S}{\text{O}}_2\left(\text{g}\right)+{\text{O}}_2\left(\text{g}\right)\rightleftharpoons 2\text{S}{\text{O}}_3\left(\text{g}\right)$

For this reaction, rate

${\text{r}}_1=\text{k}{[\text{S}{\text{O}}_2]}^2[{\text{O}}_2]$

On doubling the volume of vessel, concentration would be half. Hence,

Rate$\left({\text{r}}_2\right)=\text{k}{\left(\frac{{\left[\text{S}{\text{O}}_2\right]}_{}}{2}\right)}^2\left(\frac{{\left[{\text{O}}_2\right]}_{}}{2}\right)=\frac{{\text{r}}_1}{8}$

$\frac{{\text{r}}_1}{{\text{r}}_2}=8:1$