Decomposition of Silver Chloride (Photodecomposition)

2AgCl → 2Ag + Cl2

概要

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.

参加者

役割 物質 係数 状態
反応物 Silver Chloride AgCl 2 (s)
生成物 Chlorine Cl 1 (g)
生成物 Silver Ag 2 (s)

日常の例

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

産業上の重要性

デジタル写真がフィルム写真に大部分取って代わりましたが、ハロゲン化銀の感光性は現在も特殊写真用紙、ホログラフィー、そして一部の医療画像用途で使用されています。

特性

タイプ
Decomposition
可逆的
いいえ
エネルギー
吸熱性
ΔH
254.0 kJ/mol

関連する反応

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.