Photodissociation of Chlorine Gas

Cl2 → 2Cl·

अवलोकन

UV or visible light (< 500 nm) cleaves the Cl–Cl bond homolytically to produce two chlorine free radicals. This is the initiation step in many radical chain reactions, including the chlorination of hydrocarbons. Each chlorine radical can propagate thousands of reaction cycles before termination.

रोजमर्रा का उदाहरण

The chlorination of methane to produce chloromethane begins with this UV-initiated splitting of chlorine gas.

औद्योगिक महत्व

Free radical chlorination is used to manufacture chlorinated solvents, PVC (polyvinyl chloride), and various chlorinated organic compounds.

गुण

प्रकार
Photochemical
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माशोषी
ΔH
242.6 kJ/mol

संबंधित अभिक्रियाएँ

Photochemical Smog Formation (NO₂ Photolysis) Photochromism of Spiropyran Chlorophyll Fluorescence Photodegradation of Methylene Blue by TiO₂ Silver Bromide Photodecomposition Cis-Trans Isomerization of Retinal Photosynthesis Ozone Formation by UV Light Silver Chloride Photodecomposition Dye-Sensitized Solar Cell (Grätzel Cell)

Frequently Asked Questions

What is the equation for Photodissociation of Chlorine Gas?
The balanced equation is: Cl₂ → 2Cl·.
What type of reaction is Photodissociation of Chlorine Gas?
Photodissociation of Chlorine Gas is a photochemical reaction.
Is Photodissociation of Chlorine Gas exothermic or endothermic?
Photodissociation of Chlorine Gas is endothermic (absorbs energy). The enthalpy change (ΔH) is 242.6 kJ/mol.