Formation of Hydrogen Chloride
H2 + Cl2 → 2HCl
Overview
Hydrogen gas and chlorine gas combine to form hydrogen chloride gas. This reaction can be initiated by UV light and proceeds explosively as a radical chain reaction. Dissolving HCl gas in water produces hydrochloric acid.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Reactant | Hydrogen H | 1 | (g) |
| Reactant | Chlorine Cl | 1 | (g) |
| Product | Hydrochloric Acid HCl | 2 | (g) |
Everyday Example
Hydrochloric acid, made by dissolving the product in water, is found in muriatic acid used to clean concrete and adjust pool pH.
Industrial Importance
HCl production is important for the chemical industry, used in steel pickling, food processing, and as a reagent in organic synthesis.
Properties
- Type
- Synthesis
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -184.6 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 Hydrogen Chloride?
The balanced equation is: H₂ + Cl₂ → 2HCl.
What type of reaction is Formation of Hydrogen Chloride?
Formation of Hydrogen Chloride is a synthesis reaction.
Is Formation of Hydrogen Chloride exothermic or endothermic?
Formation of Hydrogen Chloride is exothermic (releases energy). The enthalpy change (ΔH) is -184.6 kJ/mol.