On global scales O3 is produced in the troposphere by CO and mainly CH4 oxidation. Consider the following reactions for oxidation of CO and CH4 to CO2. We wish to write out net reactions for CO and CH4 oxidation, which means there should be no NOx in the net reaction. O2 CH4 + OH à CH3O2 + H2O (1) CH3O2 + NO à CH3O + NO2 (2) CH3O + O2 à HCHO + HO2 (3) CH3O2 + HO2 à CH3OOH + O2 (4) CH3OOH + OH à HCHO + OH + H2O (5) O2 NO2 + hv à NO + O3 (6) HO2 + NO à OH + NO2 (7) HCHO + OH à CHO + H2O (8) CHO + O2 à CO + HO2 (9) O2 CO + OH à CO2 + HO2 (10) Consider a high NOx case. Write out the net reaction for the oxidation of CO to CO2 and a net reaction for the oxidation of CH4 to CO2. In this case, how many molecules of O3 are produced per molecule of CO oxidized and how many molecules of O3 are produced per molecule of CH4 oxidized by these reactions?
On global scales O3 is produced in the troposphere by CO and mainly CH4 oxidation.
Consider the following reactions for oxidation of CO and CH4 to CO2. We wish to write out
net reactions for CO and CH4 oxidation, which means there should be no NOx in the net
reaction.
O2
CH4 + OH à CH3O2 + H2O (1)
CH3O2 + NO à CH3O + NO2 (2)
CH3O + O2 à HCHO + HO2 (3)
CH3O2 + HO2 à CH3OOH + O2 (4)
CH3OOH + OH à HCHO + OH + H2O (5)
O2
NO2 + hv à NO + O3 (6)
HO2 + NO à OH + NO2 (7)
HCHO + OH à CHO + H2O (8)
CHO + O2 à CO + HO2 (9)
O2
CO + OH à CO2 + HO2 (10)
Consider a high NOx case. Write out the net reaction for the oxidation of CO to
CO2 and a net reaction for the oxidation of CH4 to CO2. In this case, how many
molecules of O3 are produced per molecule of CO oxidized and how many molecules of
O3 are produced per molecule of CH4 oxidized by these reactions?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
