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
Reações relacionadas
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Decomposition of Carbonic Acid
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Thermal Decomposition of Lead(IV) Oxide
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Decomposition of Ammonium Nitrate
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.