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 Calcium Hypochlorite
Decomposition of Carbonic Acid
Decomposition of Nitrous Oxide (Laughing Gas)
Decomposition of Barium Peroxide
Decomposition of Sodium Bicarbonate
Decomposition of Water (Electrolysis)
Decomposition of Silver Chloride (Photodecomposition)
Thermal Decomposition of Lead(IV) Oxide
Decomposition of Hydrogen Peroxide
Decomposition of Ammonium Nitrate
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.