Thermal Decomposition of Ammonium Dichromate (Volcano Reaction)

(NH4)2Cr2O7 → Cr2O3 + N2 + 4H2O

Descripción general

Ammonium dichromate decomposes spectacularly when ignited, producing green chromium(III) oxide, nitrogen gas, and water vapor. The green fluffy chromium oxide rises like a miniature volcano as gases escape, making this one of the most dramatic chemistry demonstrations.

Participantes

Rol Sustancia Coeficiente Estado
Producto Nitrogen N 1 (g)
Producto Water H₂O 4 (g)

Ejemplo cotidiano

This is the famous chemical volcano demonstration performed in science classes and science fairs worldwide.

Importancia industrial

Demostración espectacular en química educativa; el cromo(III) producido tiene aplicaciones en curtido de pieles.

Propiedades

Tipo
Decomposition
Reversible
No
Energía
Exotérmico
ΔH
-315,0 kJ/mol

Reacciones relacionadas

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Frequently Asked Questions

What is the equation for Thermal Decomposition of Ammonium Dichromate (Volcano Reaction)?
The balanced equation is: (NH₄)₂Cr₂O₇ → Cr₂O₃ + N₂ + 4H₂O.
What type of reaction is Thermal Decomposition of Ammonium Dichromate (Volcano Reaction)?
Thermal Decomposition of Ammonium Dichromate (Volcano Reaction) is a decomposition reaction.
Is Thermal Decomposition of Ammonium Dichromate (Volcano Reaction) exothermic or endothermic?
Thermal Decomposition of Ammonium Dichromate (Volcano Reaction) is exothermic (releases energy). The enthalpy change (ΔH) is -315.0 kJ/mol.