Thermal Decomposition of Lead(IV) Oxide

2PbO₂ → 2PbO + O₂

Descripción general

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.

Participantes

Rol	Sustancia	Coeficiente	Estado
Producto	Oxygen O	1	(g)

Ejemplo cotidiano

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

Importancia industrial

Relevante en la fabricación de baterías de plomo, pigmentos y vidrio de cristal con alta densidad óptica.

Propiedades

Tipo: Decomposition
Reversible: No
Energía: Endotérmico
ΔH: 118,4 kJ/mol

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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.