Decomposition of Calcium Carbonate (Calcination)

CaCO3 → CaO + CO2

अवलोकन

Calcium carbonate (limestone) decomposes when heated above 840 C into calcium oxide (quicklime) and carbon dioxide gas. This is one of the oldest known industrial chemical reactions, used for thousands of years in cement and mortar production. It is a key process in the cement industry.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Calcium Carbonate CaCO₃ 1 (s)
उत्पाद Calcium Oxide CaO 1 (s)
उत्पाद Carbon Dioxide CO₂ 1 (g)

रोजमर्रा का उदाहरण

Lime kilns that have operated for centuries use this reaction to convert limestone into quicklime for building materials.

औद्योगिक महत्व

This reaction is fundamental to cement production (over 4 billion tonnes annually). It is also the largest single industrial source of CO2 emissions, responsible for about 8% of global emissions.

गुण

प्रकार
Decomposition
प्रतिवर्ती
हाँ
ऊर्जा
ऊष्माशोषी
ΔH
178.3 kJ/mol

संबंधित अभिक्रियाएँ

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 Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

Frequently Asked Questions

What is the equation for Decomposition of Calcium Carbonate (Calcination)?
The balanced equation is: CaCO₃ → CaO + CO₂.
What type of reaction is Decomposition of Calcium Carbonate (Calcination)?
Decomposition of Calcium Carbonate (Calcination) is a decomposition reaction. It is reversible under certain conditions.
Is Decomposition of Calcium Carbonate (Calcination) exothermic or endothermic?
Decomposition of Calcium Carbonate (Calcination) is endothermic (absorbs energy). The enthalpy change (ΔH) is 178.3 kJ/mol.