Decomposition of Sodium Bicarbonate

2NaHCO₃ → Na₂CO₃ + H₂O + CO₂

Visão geral

Sodium bicarbonate (baking soda) decomposes when heated above 50 C into sodium carbonate, water, and carbon dioxide. This thermal decomposition is the key reaction in baking, where the released CO2 gas creates the bubbles that make baked goods rise.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Sodium Bicarbonate NaHCO₃	2	(s)
Produto	Sodium Carbonate Na₂CO₃	1	(s)
Produto	Water H₂O	1	(g)
Produto	Carbon Dioxide CO₂	1	(g)

Exemplo do cotidiano

When baking soda is added to cake batter and heated in the oven, this decomposition releases CO2 bubbles that make the cake fluffy and light.

Importância industrial

Esta reação é fundamental para a indústria da panificação. O bicarbonato de sódio é também utilizado em extintores de incêndio, onde o CO₂ libertado ajuda a abafar as chamas.

Propriedades

Tipo: Decomposition
Reversível: Não
Energia: Endotérmico
ΔH: 129,0 kJ/mol

Reações relacionadas

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 Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Thermal Decomposition of Mercury(II) Oxide Cracking of Octane (Thermal Cracking)

Frequently Asked Questions

What is the equation for Decomposition of Sodium Bicarbonate?

The balanced equation is: 2NaHCO₃ → Na₂CO₃ + H₂O + CO₂.

What type of reaction is Decomposition of Sodium Bicarbonate?

Decomposition of Sodium Bicarbonate is a decomposition reaction.

Is Decomposition of Sodium Bicarbonate exothermic or endothermic?

Decomposition of Sodium Bicarbonate is endothermic (absorbs energy). The enthalpy change (ΔH) is 129.0 kJ/mol.