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 1 atm . After $\mathrm{Y}\times 10^3$ seconds, the pressure inside the cylinder is found to be 1.45 atm . If the rate constant of the reaction is $5\times 10^{-4}{\sec }^{-1}$, assuming ideal gas behaviour, the value of Y is $\_\_\_\_$。