Formation of Calcium Carbonate from Oxides

CaO + CO2 → CaCO3

अवलोकन

Calcium oxide reacts with carbon dioxide to form calcium carbonate. This is the reverse of the lime-burning process and occurs naturally in geological carbon sequestration. Limewater (calcium hydroxide solution) turns milky when CO2 is bubbled through due to this reaction.

प्रतिभागी

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

रोजमर्रा का उदाहरण

The classic limewater test for carbon dioxide relies on this reaction, as the milky precipitate is calcium carbonate.

औद्योगिक महत्व

This reaction is relevant to carbon capture technology and cement carbonation curing. It also occurs in geological weathering processes that regulate atmospheric CO2.

गुण

प्रकार
Synthesis
प्रतिवर्ती
हाँ
ऊर्जा
ऊष्माक्षेपी
ΔH
-178.3 kJ/mol

संबंधित अभिक्रियाएँ

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

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