Thermal Decomposition of Lead(IV) Oxide

2PbO₂ → 2PbO + O₂

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Sản phẩm	Oxygen O	1	(g)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

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.

Tính chất

Loại: Decomposition
Thuận nghịch: Không
Năng lượng: Thu nhiệt
ΔH: 118,4 kJ/mol

Phản ứng liên quan

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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.