The decomposition of dinitrogen pentoxide is described by the following chemical equation 2 N₂O₅(g) → 4 NO₂(g) + O₂(g)
If the rate of appearance of NO₂ is equal to 0.560 mol/min at a particular moment,what is the rate of appearance of O₂ at that moment?

Question

Quizplus · Accepted Answer

The stoichiometry of the reaction shows that for every 4 moles of NO2 produced, 1 mole of O2 is produced. Therefore, the rate of appearance of O2 is (1/4) of the rate of appearance of NO2, which is 0.560 mol/min. Thus, the rate of appearance of O2 is 0.560 mol/min ÷ 4 = 0.140 mol/min.

The Decomposition of Dinitrogen Pentoxide Is Described by the Following