Formation of Nitrogen Dioxide

2NO + O2 → 2NO2

نظرة عامة

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.

المشاركون

الدور المادة المعامل الحالة
منتج Nitrogen Dioxide NO₂ 2 (g)

مثال من الحياة اليومية

The brown haze visible over cities on smoggy days is largely due to nitrogen dioxide formed by this reaction from vehicle exhaust.

الأهمية الصناعية

This is a key step in the Ostwald process for nitric acid production. Managing NOx emissions is a major environmental and regulatory concern for power plants and vehicles.

الخصائص

النوع
Synthesis
قابل للعكس
نعم
الطاقة
طارد للحرارة
ΔH
-114,2 kJ/mol

التفاعلات ذات الصلة

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Formation of Sulfur Dioxide Fischer-Tropsch Synthesis (General)

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.