Decomposition of Silver Chloride (Photodecomposition)

2AgCl → 2Ag + Cl2

Visão geral

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

Papel Substância Coeficiente Estado
Reagente Silver Chloride AgCl 2 (s)
Produto Chlorine Cl 1 (g)
Produto Silver Ag 2 (s)

Exemplo do cotidiano

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

Importância industrial

Embora a fotografia digital tenha largamente substituído o filme, a fotossensibilidade dos halogenetos de prata ainda é utilizada em papéis fotográficos de especialidade, holografia e algumas aplicações de imagiologia médica.

Propriedades

Tipo
Decomposition
Reversível
Não
Energia
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.