[Solved] The decomposition reaction is started in a closed cylinder under isothermal isochoric condition at an initial pressure of 1 atm. After Y \\times 10^3 s, the pressure inside the cylinder is found to be 1.45 atm. If the rate constant of the reaction is 5 \\times 10^{-4} s^{-1}, assuming ideal gas behavior, the value of Y is __________ . - - JEE (Advanced) 2019 Paper-2