chem question!!!!!!!!!!!!!!!?

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chem question!!!!!!!!!!!!!!!?

N2(g)+O2(g)+heat<-->2NO(g)
why does nitric oxide(NO) not genereally form in the atmosphere but is formed in the internal combustion engine of an automobile or during a lightning storm.

2007-11-13 12:20:58 · 2 answers · asked by m 1 in Science & Mathematics ➔ Chemistry

2 answers

Because it is an endothermic reaction. Heat occurs on the left hand side of the equation. So you need theheat ofcombustion or of lightning.

2007-11-13 12:26:05 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋

the direct combination of O2 and N2 occurs only at very high temperatures such as near a lightning bolt.

2007-11-13 20:32:16 · answer #2 · answered by parry43 3 · 0⤊ 0⤋