Decomposition of Sodium Bicarbonate

2NaHCO3 → Na2CO3 + H2O + CO2

概述

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.

参与者

角色 物质 系数 状态
反应物 Sodium Bicarbonate NaHCO₃ 2 (s)
产物 Sodium Carbonate Na₂CO₃ 1 (s)
产物 Water H₂O 1 (g)
产物 Carbon Dioxide CO₂ 1 (g)

日常示例

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.

工业重要性

该反应是烘焙行业的基础。碳酸氢钠也用于灭火器,释放的CO2有助于扑灭火焰。

属性

类型
Decomposition
可逆
否
能量
吸热
ΔH
129.0 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 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.