To determine the rate of production of
NO2 for the reaction
2N2O5(g)⟶4NO2(g)+O2(g), we use the fact that the rate of production of a product is related to the rate of disappearance of a reactant.
Given:
Initial concentration of
N2O5 is
2.0‌mol∕L.
After 300 minutes, the concentration is reduced to
1.4‌mol∕L.
Calculate the rate of disappearance of
N2O5 :
Rate of disappearance of
N2O5=‌=‌=‌As per the stoichiometry of the reaction, the rate of formation of
NO2 is twice the rate of disappearance of
N2O5 :
Rate of formation of
NO2=2×‌=‌=4×10−3‌mol∕L∕minTherefore, the rate of production of
NO2 is
4×10−3‌mol∕L∕min.