Chemical Reactions

(Prinn and Fegley, 1987)

NO produced by shock:

O2 => O + O

O + N2 => NO + N

N + O2 => NO + O

NO sink in shock:

NO => N + O

NO + N => N2 + O

NO + O => N + O2

NO + NO => N2O + O

Oxidation of shock-produced NO

NO + NO + O2 => 2 NO2

Gas phase NOx chemistry

NO2 + NO2 + O2 N2O4+ M

NO + NO2 + O2 <=> NO2 + NO3

NO2 + NO3 + M <=> N2O5 + M

NO + NO3 => 2NO2

Nitric and nitrous acid formation

2NO2 + H2O(l) => HNO3(aq) + HNO2(aq)

NO2 + NO3 + H2O(l) => 2HNO3(aq)

N2O4 + H2O(l) => HNO3(aq) + HNO2(aq)

N2O5 + H2O(l) => 2HNO3(aq)

3HNO2(aq) => HNO3(aq) + H2O(l) + 2NO

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