Chemistry
State why high temperatures in internal combustion engines release pollutant – oxides of nitrogen.
Answer
In internal combustion engines, combustion of fossil fuel occurs with an oxidiser (air). The air drawn from the atmosphere contains about 80% nitrogen. The nitrogen combines with oxygen at high temperature producing oxides of nitrogen.
N2 + O2 ⟶ 2NO [at high temp.]
Thus, exhaust gases of all internal combustion engines release oxides of nitrogen.
Related Questions
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