The rate eonstant for the first-order decomposition of N2O5 in the reaction: 2N4O5(g)4NO2(g)+O2(g) is k=3.38105sl at 25C with fate =k[N2O5]. What is the half-life of N2Os ? What will be the total pressure, initially 78.4kPa for the pure N2O5 vapee, X2 ) 5.0s, and (b) 5.0 min after initiation of the reaction