Thermal Decomposition of Lead(IV) Oxide
2PbO2 → 2PbO + O2
Обзор
Lead(IV) oxide (lead dioxide) decomposes when heated above 290 C to form lead(II) oxide and oxygen. This decomposition reflects the instability of the +4 oxidation state for lead. Lead dioxide is a strong oxidizer used in lead-acid batteries.
Участники
| Роль | Вещество | Коэффициент | Состояние |
|---|---|---|---|
| Продукт | Oxygen O | 1 | (g) |
Пример из жизни
The positive plates of car batteries contain lead dioxide, which undergoes reduction (not this thermal decomposition) during discharge.
Промышленное значение
Understanding PbO2 stability is critical for lead-acid battery design. Lead dioxide is also used as an electrode material in water treatment and chemical synthesis.
Свойства
- Тип
- Decomposition
- Обратимая
- Нет
- Энергия
- Эндотермическая
- ΔH
- 118,4 kJ/mol
Связанные реакции
Decomposition of Calcium Hypochlorite
Decomposition of Carbonic Acid
Decomposition of Nitrous Oxide (Laughing Gas)
Decomposition of Barium Peroxide
Decomposition of Sodium Bicarbonate
Decomposition of Water (Electrolysis)
Decomposition of Silver Chloride (Photodecomposition)
Decomposition of Hydrogen Peroxide
Decomposition of Sodium Azide (Airbag Reaction)
Decomposition of Ammonium Nitrate
Frequently Asked Questions
What is the equation for Thermal Decomposition of Lead(IV) Oxide?
The balanced equation is: 2PbO₂ → 2PbO + O₂.
What type of reaction is Thermal Decomposition of Lead(IV) Oxide?
Thermal Decomposition of Lead(IV) Oxide is a decomposition reaction.
Is Thermal Decomposition of Lead(IV) Oxide exothermic or endothermic?
Thermal Decomposition of Lead(IV) Oxide is endothermic (absorbs energy). The enthalpy change (ΔH) is 118.4 kJ/mol.