Chemistry - Chemical Kinetics Question with Solution | TestHub

The decomposition reaction $2{\mathrm{N}}_2{\mathrm{O}}_5(\mathrm{g})\stackrel{\Delta }{\to }2{\mathrm{N}}_2{\mathrm{O}}_4(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})$ is started in a closed cylinder under isothermal isochoric condition at an initial pressure of 10 atm . After $\mathrm{Y}\times 10^2\mathrm{s}$, the pressure inside the cylinder is found to be 12.5 atm . If the rate constant of the reaction is $5\times 10^{-4}{\mathrm{s}}^{-1}$, assuming ideal gas behavior, the value of Y is $\_\_\_\_$ . $[\ln =2=0.7]$