At a particular temperature the first-order gas-phase reaction2N2O5? 2N2O4 +O2 has a half-life for the disappearance of dinitrogenpentoxide of 3240s. If 1.00 atm of N2O5 isintroduced into an evacuated 5.00L flask, what will be the totalpressure of the gases in the flask after 1.5 hours?