Formation of Nitrogen Dioxide
2NO + O2 → 2NO2
概要
Nitric oxide reacts with oxygen in the atmosphere to form nitrogen dioxide, a reddish-brown toxic gas. This reaction is central to atmospheric chemistry and smog formation. It occurs rapidly at room temperature without any catalyst needed.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 生成物 | Nitrogen Dioxide NO₂ | 2 | (g) |
日常の例
The brown haze visible over cities on smoggy days is largely due to nitrogen dioxide formed by this reaction from vehicle exhaust.
産業上の重要性
この反応はオストワルト法による硝酸製造の重要工程である。NOx排出管理は現代の大気汚染規制の主要課題であり、触媒コンバーターの開発はこの化学の理解に基づいている。
特性
- タイプ
- Synthesis
- 可逆的
- はい
- エネルギー
- 発熱性
- ΔH
- -114.2 kJ/mol
関連する反応
Frequently Asked Questions
What is the equation for Formation of Nitrogen Dioxide?
The balanced equation is: 2NO + O₂ → 2NO₂.
What type of reaction is Formation of Nitrogen Dioxide?
Formation of Nitrogen Dioxide is a synthesis reaction. It is reversible under certain conditions.
Is Formation of Nitrogen Dioxide exothermic or endothermic?
Formation of Nitrogen Dioxide is exothermic (releases energy). The enthalpy change (ΔH) is -114.2 kJ/mol.