Decomposition of Silver Chloride (Photodecomposition)

2AgCl → 2Ag + Cl2

Descripción general

Silver chloride decomposes when exposed to light, forming metallic silver and chlorine gas. This photosensitivity is the foundation of silver-based photography. The white compound darkens to gray or black as metallic silver particles form on the crystal surface.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Silver Chloride AgCl 2 (s)
Producto Chlorine Cl 1 (g)
Producto Silver Ag 2 (s)

Ejemplo cotidiano

Traditional film photography relies on the photodecomposition of silver halides (including silver chloride) to capture images.

Importancia industrial

Aunque la fotografía digital ha reemplazado en gran medida a la película, la fotosensibilidad de los haluros de plata todavía se utiliza en papeles fotográficos especiales, holografía y algunas aplicaciones de imagen médica.

Propiedades

Tipo
Decomposition
Reversible
No
Energía
Endotérmico
ΔH
254,0 kJ/mol

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Frequently Asked Questions

What is the equation for Decomposition of Silver Chloride (Photodecomposition)?
The balanced equation is: 2AgCl → 2Ag + Cl₂.
What type of reaction is Decomposition of Silver Chloride (Photodecomposition)?
Decomposition of Silver Chloride (Photodecomposition) is a decomposition reaction.
Is Decomposition of Silver Chloride (Photodecomposition) exothermic or endothermic?
Decomposition of Silver Chloride (Photodecomposition) is endothermic (absorbs energy). The enthalpy change (ΔH) is 254.0 kJ/mol.