Question

Dinitrogen pentoxide decomposes in the gas phase to form nitrogen dioxide and oxygen gas. The reaction is first order in dinitrogen pentoxide and has a half-life of 2.81 h at 25 ∘C.

If a 1.3 L reaction vessel initially contains 745 Torr of N2O5 at 25 ∘C, what partial pressure of O2 will be present in the vessel after 230 minutes?

Answer 1

It's a first order decomposition