Decomposition of Silver Chloride (Photodecomposition)

2AgCl → 2Ag + Cl2

概述

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.

参与者

角色 物质 系数 状态
反应物 Silver Chloride AgCl 2 (s)
产物 Chlorine Cl 1 (g)
产物 Silver Ag 2 (s)

日常示例

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

工业重要性

虽然数码摄影已基本取代胶片,卤化银感光性仍用于特殊摄影纸、全息摄影和某些医学成像应用。

属性

类型
Decomposition
可逆
否
能量
吸热
ΔH
254.0 kJ/mol

相关反应

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

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.