Silver Bromide Photodecomposition

2AgBr → 2Ag + Br2

Visão geral

Silver bromide is more photosensitive than silver chloride and was the primary photosensitive material in photographic film. Blue and UV light excite electrons in the AgBr crystal lattice, reducing silver ions at crystal defects to form a latent image. Chemical development then amplifies these silver clusters.

Participantes

Papel Substância Coeficiente Estado
Produto Silver Ag 2 (s)

Exemplo do cotidiano

Color and black-and-white photographic film used AgBr crystals in gelatin emulsion to capture images for over a century.

Importância industrial

O AgBr foi central na indústria fotográfica multibilionária. A Kodak e a Fuji construíram negócios globais com base na tecnologia de emulsão de AgBr.

Propriedades

Tipo
Photochemical
Reversível
Não
Energia
Endotérmico
ΔH
199,0 kJ/mol

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Frequently Asked Questions

What is the equation for Silver Bromide Photodecomposition?
The balanced equation is: 2AgBr → 2Ag + Br₂.
What type of reaction is Silver Bromide Photodecomposition?
Silver Bromide Photodecomposition is a photochemical reaction.
Is Silver Bromide Photodecomposition exothermic or endothermic?
Silver Bromide Photodecomposition is endothermic (absorbs energy). The enthalpy change (ΔH) is 199.0 kJ/mol.