Formation of Sulfur Trioxide
2SO2 + O2 → 2SO3
Обзор
Sulfur dioxide reacts with oxygen to form sulfur trioxide in the Contact Process. This reversible reaction requires a vanadium pentoxide catalyst and temperatures around 400-450 C. It is the key step in sulfuric acid manufacturing.
Участники
| Роль | Вещество | Коэффициент | Состояние |
|---|---|---|---|
| Реагент | Oxygen O | 1 | (g) |
| Реагент | Sulfur Dioxide SO₂ | 2 | (g) |
| Продукт | Sulfur Trioxide SO₃ | 2 | (g) |
Пример из жизни
This reaction occurring in the atmosphere from volcanic emissions or industrial pollution contributes to acid rain formation.
Промышленное значение
The Contact Process is the primary industrial method for producing sulfuric acid, the world's most produced chemical. Over 260 million tonnes of sulfuric acid are made annually using this reaction.
Свойства
- Тип
- Synthesis
- Обратимая
- Да
- Энергия
- Экзотермическая
- ΔH
- -198,2 kJ/mol
- Катализатор
- Vanadium(V) oxide (V₂O₅)
Связанные реакции
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 Sulfur Trioxide?
The balanced equation is: 2SO₂ + O₂ → 2SO₃.
What type of reaction is Formation of Sulfur Trioxide?
Formation of Sulfur Trioxide is a synthesis reaction. It is reversible under certain conditions.
Is Formation of Sulfur Trioxide exothermic or endothermic?
Formation of Sulfur Trioxide is exothermic (releases energy). The enthalpy change (ΔH) is -198.2 kJ/mol.
What conditions are needed for Formation of Sulfur Trioxide?
This reaction requires a catalyst (Vanadium(V) oxide (V₂O₅)).