Thermal Decomposition of Lead(IV) Oxide

2PbO2 → 2PbO + O2

概要

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.

参加者

役割 物質 係数 状態
生成物 Oxygen O 1 (g)

日常の例

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

産業上の重要性

PbO₂の安定性を理解することは鉛蓄電池の設計に不可欠である。二酸化鉛は水処理や化学合成の電極材料としても使用される。

特性

タイプ
Decomposition
可逆的
いいえ
エネルギー
吸熱性
ΔH
118.4 kJ/mol

関連する反応

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.