4) The decomposition of N₂O5; via the reaction -2(N₂O5) +4(NO₂) + O₂ = 0 is first order in

N₂O5 unless the pressure is very low. At 298 K, the first order rate constant for the

decomposition of N₂O5 is k=3.38×10/s. (This is not equal to the first order rate

constant for the reaction as written above.) What is the half-life of N₂O5? Starting with

p(N₂O5) = 500 Torr, what will its partial pressure be after 10 s and after 10 minutes?