Thermal Decomposition of Lead(IV) Oxide

2PbO2 → 2PbO + O2

概述

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.

参与者

角色 物质 系数 状态
产物 Oxygen O 1 (g)

日常示例

The positive plates of car batteries contain lead dioxide, which undergoes reduction (not this thermal decomposition) during discharge.

工业重要性

了解PbO₂的热稳定性对铅酸蓄电池的寿命优化和高温工况下的安全设计至关重要。

属性

类型
Decomposition
可逆
否
能量
吸热
ΔH
118.4 kJ/mol

相关反应

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

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.