Decomposition of Water (Electrolysis)
2H2O → 2H2 + O2
نظرة عامة
Water decomposes into hydrogen and oxygen gases when an electric current is passed through it. This electrolysis reaction is the reverse of the synthesis of water. It requires a minimum voltage of 1.23 V at standard conditions, though practical electrolyzers use higher voltages.
المشاركون
مثال من الحياة اليومية
Green hydrogen production uses renewable electricity to split water, producing clean hydrogen fuel for vehicles and industry.
الأهمية الصناعية
Water electrolysis is central to the green hydrogen economy, producing hydrogen for fuel cells, ammonia synthesis, and steel production without carbon emissions.
الخصائص
- النوع
- Decomposition
- قابل للعكس
- نعم
- الطاقة
- ماص للحرارة
- ΔH
- 571,6 kJ/mol
التفاعلات ذات الصلة
Decomposition of Calcium Hypochlorite
Decomposition of Carbonic Acid
Decomposition of Nitrous Oxide (Laughing Gas)
Decomposition of Barium Peroxide
Decomposition of Sodium Bicarbonate
Decomposition of Silver Chloride (Photodecomposition)
Thermal Decomposition of Lead(IV) Oxide
Decomposition of Hydrogen Peroxide
Decomposition of Sodium Azide (Airbag Reaction)
Decomposition of Ammonium Nitrate
Frequently Asked Questions
What is the equation for Decomposition of Water (Electrolysis)?
The balanced equation is: 2H₂O → 2H₂ + O₂.
What type of reaction is Decomposition of Water (Electrolysis)?
Decomposition of Water (Electrolysis) is a decomposition reaction. It is reversible under certain conditions.
Is Decomposition of Water (Electrolysis) exothermic or endothermic?
Decomposition of Water (Electrolysis) is endothermic (absorbs energy). The enthalpy change (ΔH) is 571.6 kJ/mol.