Explain that oxides of nitrogen form when nitrogen and oxygen react at high temperatures in engines.

In the subtopic Atmospheric pollutants from fuels, this learning objective focuses on explain that oxides of nitrogen form when nitrogen and oxygen react at high temperatures in engines. Within Common atmospheric pollutants and their sources, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include oxides of nitrogen and high temperature. oxides of nitrogen means compounds formed when nitrogen and oxygen react at high temperatures, often produced in vehicle engines. Avoid students often confuse the formation of oxides of nitrogen with other pollutants, thinking they are produced from fuel impurities rather than from the reaction of nitrogen and oxygen at high temperatures; instead remember that oxides of nitrogen specifically form when nitrogen and oxygen react at high temperatures, such as in engine combustion, and are distinct from pollutants formed from fuel impurities. For exam answers, remember that oxides of nitrogen are formed when nitrogen and oxygen react at high temperatures, such as in car engines.