Formation of Sulfur Dioxide
S + O2 → SO2
概述
Sulfur burns in oxygen with a characteristic blue flame to produce sulfur dioxide, a pungent-smelling gas. This reaction is the first step in the industrial production of sulfuric acid. Sulfur dioxide is also a significant atmospheric pollutant.
参与者
| 角色 | 物质 | 系数 | 状态 |
|---|---|---|---|
| 反应物 | Sulfur S | 1 | (s) |
| 反应物 | Oxygen O | 1 | (g) |
| 产物 | Sulfur Dioxide SO₂ | 1 | (g) |
日常示例
The smell of a struck match comes partly from sulfur dioxide produced as the match head burns.
工业重要性
二氧化硫是生产硫酸（接触法）的原料，全球年产硫酸约2.5亿吨。烟气中的SO₂排放会形成酸雨，因此燃煤电厂和冶炼厂必须安装烟气脱硫装置。
属性
- 类型
- Synthesis
- 可逆
- 否
- 能量
- 放热
- ΔH
- -296.8 kJ/mol
相关反应
Frequently Asked Questions
What is the equation for Formation of Sulfur Dioxide?
The balanced equation is: S + O₂ → SO₂.
What type of reaction is Formation of Sulfur Dioxide?
Formation of Sulfur Dioxide is a synthesis reaction.
Is Formation of Sulfur Dioxide exothermic or endothermic?
Formation of Sulfur Dioxide is exothermic (releases energy). The enthalpy change (ΔH) is -296.8 kJ/mol.