Formation of Calcium Carbonate from Oxides

CaO + CO₂ → CaCO₃

نظرة عامة

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.

المشاركون

الدور	المادة	المعامل	الحالة
متفاعل	Calcium Oxide CaO	1	(s)
متفاعل	Carbon Dioxide CO₂	1	(g)
منتج	Calcium Carbonate CaCO₃	1	(s)

مثال من الحياة اليومية

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

الأهمية الصناعية

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

الخصائص

النوع: Synthesis
قابل للعكس: نعم
الطاقة: طارد للحرارة
ΔH: -178,3 kJ/mol

التفاعلات ذات الصلة

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.