Chemistry - Chemical Kinetics Question with Solution | TestHub

Consider the following single step reaction in gas phase at constant temperature. $2{\mathrm{A}}_{(\mathrm{g})}+{\mathrm{B}}_{(\mathrm{g})}\to {\mathrm{C}}_{(\mathrm{g})}$ The initial rate of the reaction is recorded as ${\mathrm{r}}_1$ when the reaction starts with $1.5\mathrm{atm}$ pressure of $\mathrm{A}$ and $0.7\mathrm{atm}$ pressure of $\mathrm{B}$. After some time, the rate ${\mathrm{r}}_2$ is recorded when the pressure of $\mathrm{C}$ becomes $0.5\mathrm{atm}$. The ratio ${\mathrm{r}}_1:{\mathrm{r}}_2$ is ______ $\times 10^{-1}$. (Nearest integer)