Formation of Nitrogen Dioxide

2NO + O₂ → 2NO₂

Descripción general

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.

Participantes

Rol	Sustancia	Coeficiente	Estado
Producto	Nitrogen Dioxide NO₂	2	(g)

Ejemplo cotidiano

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

Importancia industrial

Este es un paso clave en el proceso de Ostwald para la producción de ácido nítrico. La gestión de las emisiones de NOₓ es un desafío ambiental y tecnológico importante en la industria energética.

Propiedades

Tipo: Synthesis
Reversible: Sí
Energía: Exotérmico
ΔH: -114,2 kJ/mol

Reacciones relacionadas

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.