Formation of Phosphorus Pentoxide
P4 + 5O2 → P4O10
Overview
White phosphorus burns vigorously in oxygen to form phosphorus pentoxide, an extremely powerful desiccant. The reaction is highly exothermic and phosphorus can spontaneously ignite in air. Phosphorus pentoxide reacts violently with water to form phosphoric acid.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Reactant | Phosphorus P | 1 | (s) |
| Reactant | Oxygen O | 5 | (g) |
Everyday Example
Phosphorus pentoxide is used as a drying agent in laboratory settings because it absorbs water so aggressively.
Industrial Importance
Used as a dehydrating agent in organic synthesis and in the production of phosphoric acid. Important intermediate in the phosphate fertilizer industry.
Properties
- Type
- Synthesis
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -2984.0 kJ/mol
Related Reactions
Fischer-Tropsch Synthesis (General)
Formation of Aluminum Oxide
Formation of Ammonia (Haber Process)
Formation of Barium Oxide
Formation of Barium Sulfate
Formation of Beryllium Oxide
Formation of Cadmium Oxide
Formation of Calcium Carbonate from Oxides
Formation of Calcium Hydroxide
Formation of Calcium Oxide (Quicklime)
Frequently Asked Questions
What is the equation for Formation of Phosphorus Pentoxide?
The balanced equation is: P₄ + 5O₂ → P₄O₁₀.
What type of reaction is Formation of Phosphorus Pentoxide?
Formation of Phosphorus Pentoxide is a synthesis reaction.
Is Formation of Phosphorus Pentoxide exothermic or endothermic?
Formation of Phosphorus Pentoxide is exothermic (releases energy). The enthalpy change (ΔH) is -2984.0 kJ/mol.