What is the overall chemical equation for smog after the above intermediate reactions are combined?

Answer;

N₂(g) + 2O₂(g) → 2NO₂(g).

Explanation;Photo-chemical smog is a type of air pollution that results from the reaction of solar radiation with airborne pollutant mixtures of nitrogen oxides (NOx) and volatile organic compounds (hydrocarbons).Formation of photochemical smog involves a couple of chemical reactions which includes;

N2 + O2 → 2NO

2NO + O2 → 2NO2

NO2 → NO +O

O + O2 → O3

O3 + NO ⇆ NO2 + O2

Combining all the reactions we obtain an overall reaction;

N₂(g) + 2O₂(g) → 2NO₂(g).

You need to divided twenty four by a dozen them by the temperature it is getting cook by