Formation of Sulfur Trioxide
2SO2 + O2 → 2SO3
Visão geral
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.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Oxygen O | 1 | (g) |
| Reagente | Sulfur Dioxide SO₂ | 2 | (g) |
| Produto | Sulfur Trioxide SO₃ | 2 | (g) |
Exemplo do cotidiano
This reaction occurring in the atmosphere from volcanic emissions or industrial pollution contributes to acid rain formation.
Importância industrial
O processo de contacto é o principal método industrial para a produção de ácido sulfúrico, o produto químico industrial mais produzido no mundo com mais de 200 milhões de toneladas anuais. O H₂SO₄ é essencial para fertilizantes, processamento de minérios e síntese química.
Propriedades
- Tipo
- Synthesis
- Reversível
- Sim
- Energia
- Exotérmico
- ΔH
- -198,2 kJ/mol
- Catalisador
- Vanadium(V) oxide (V₂O₅)
Reações relacionadas
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)).