Thermal Decomposition of Copper(II) Carbonate

CuCO3 → CuO + CO2

Visão geral

Green copper(II) carbonate decomposes when heated to form black copper(II) oxide and carbon dioxide gas. This is a classic laboratory demonstration showing the color change from green to black. The reaction occurs at relatively low temperatures (~290 C).

Participantes

Papel Substância Coeficiente Estado
Produto Carbon Dioxide CO₂ 1 (g)

Exemplo do cotidiano

The green patina on copper roofs (like the Statue of Liberty) contains copper carbonate, which forms from the reaction of copper with air and rain.

Importância industrial

A decomposição do carbonato de cobre é utilizada em alguns processos de fundição de cobre e na preparação de óxido de cobre para cerâmica e pigmentos.

Propriedades

Tipo
Decomposition
Reversível
Não
Energia
Endotérmico
ΔH
74,0 kJ/mol

Reações relacionadas

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 Mercury(II) Oxide Cracking of Octane (Thermal Cracking)

Frequently Asked Questions

What is the equation for Thermal Decomposition of Copper(II) Carbonate?
The balanced equation is: CuCO₃ → CuO + CO₂.
What type of reaction is Thermal Decomposition of Copper(II) Carbonate?
Thermal Decomposition of Copper(II) Carbonate is a decomposition reaction.
Is Thermal Decomposition of Copper(II) Carbonate exothermic or endothermic?
Thermal Decomposition of Copper(II) Carbonate is endothermic (absorbs energy). The enthalpy change (ΔH) is 74.0 kJ/mol.