Silver Bromide Photodecomposition

2AgBr → 2Ag + Br2

Descripción general

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

Rol Sustancia Coeficiente Estado
Producto Silver Ag 2 (s)

Ejemplo cotidiano

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

Importancia industrial

Fundamento de la fotografía analógica en blanco y negro y de los sistemas de imagen radiográfica médica.

Propiedades

Tipo
Photochemical
Reversible
No
Energía
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.