Answers

2016-01-14T20:54:25+05:30
From the equation
N₂ + O₂ -----> 2NO
              Heat
It clearly states that the reaction of nitrogen and oxygen to form nitrogen monoxide is an endothermic reaction which takes place in the presence of high temperature.
This reaction often takes place during lightning as the heat due to lightning causes this reaction and causes Nitrogen Monoxide to be formed.
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