Decomposition of Sodium Bicarbonate

2NaHCO3 → Na2CO3 + H2O + CO2

概要

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.

参加者

役割 物質 係数 状態
反応物 Sodium Bicarbonate NaHCO₃ 2 (s)
生成物 Sodium Carbonate Na₂CO₃ 1 (s)
生成物 Water H₂O 1 (g)
生成物 Carbon Dioxide CO₂ 1 (g)

日常の例

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.

産業上の重要性

この反応はベーキング産業の基本です。炭酸水素ナトリウムは消火器にも使用され、放出されたCO₂が炎を窒息させるのに役立ちます。

特性

タイプ
Decomposition
可逆的
いいえ
エネルギー
吸熱性
ΔH
129.0 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 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.