Nitrogen pentoxide reacts with nitric oxide in the gas phase according to the stoichiometric equation: N2O5 + NO (yield) 3 NO2 The following mechanism has been proposed: N2O5 (yield) NO2 + NO3  (k1) NO3 + NO2 (yield) N2O5  (k1’) NO + NO3 (yield) 2 NO2  (k2) Assume that the steady-state treatment can be applied to NO3 and derive an equation for the rate of consumption of N2O5.

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