Decomposition of Sodium Bicarbonate

2NaHCO₃ → Na₂CO₃ + H₂O + CO₂

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Sodium Bicarbonate NaHCO₃	2	(s)
Sản phẩm	Sodium Carbonate Na₂CO₃	1	(s)
Sản phẩm	Water H₂O	1	(g)
Sản phẩm	Carbon Dioxide CO₂	1	(g)

Ví dụ thực tế

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.

Tầm quan trọng công nghiệp

This reaction is fundamental to the baking industry. Sodium bicarbonate is also used in fire extinguishers, where the CO2 released helps smother flames.

Tính chất

Loại: Decomposition
Thuận nghịch: Không
Năng lượng: Thu nhiệt
ΔH: 129,0 kJ/mol

Phản ứng liên quan

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.