Formation of Calcium Hydroxide
CaO + H2O → Ca(OH)2
نظرة عامة
Calcium oxide (quicklime) reacts exothermically with water to form calcium hydroxide (slaked lime). This reaction generates considerable heat and can cause water to boil. It is one of the oldest known chemical reactions, used in construction for millennia.
المشاركون
| الدور | المادة | المعامل | الحالة |
|---|---|---|---|
| متفاعل | Calcium Oxide CaO | 1 | (s) |
| متفاعل | Water H₂O | 1 | (l) |
| منتج | Calcium Hydroxide Ca(OH)₂ | 1 | (s) |
مثال من الحياة اليومية
Self-heating food cans and chemical heating packs sometimes use this reaction between quicklime and water to generate heat.
الأهمية الصناعية
Calcium hydroxide is used in water treatment, paper manufacturing, sugar refining, and as a component in mortar and plaster. Essential for pH adjustment in many industrial processes.
الخصائص
- النوع
- Synthesis
- قابل للعكس
- لا
- الطاقة
- طارد للحرارة
- ΔH
- -65,2 kJ/mol
التفاعلات ذات الصلة
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
Formation of Sulfur Dioxide
Formation of Hydrogen Sulfide
Formation of Carbon Monoxide
Frequently Asked Questions
What is the equation for Formation of Calcium Hydroxide?
The balanced equation is: CaO + H₂O → Ca(OH)₂.
What type of reaction is Formation of Calcium Hydroxide?
Formation of Calcium Hydroxide is a synthesis reaction.
Is Formation of Calcium Hydroxide exothermic or endothermic?
Formation of Calcium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -65.2 kJ/mol.