Combustion of Hydrogen Gas

2H₂ + O₂ → 2H₂O

Tổng quan

Hydrogen gas burns in oxygen to produce water with no carbon-containing products. This makes hydrogen the ultimate clean fuel. The reaction produces a very hot, nearly invisible flame. Hydrogen-oxygen mixtures are explosive within a wide flammability range (4-75% H2 in air).

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Oxygen O	1	(g)
Chất phản ứng	Hydrogen H	2	(g)
Sản phẩm	Water H₂O	2	(l)

Ví dụ thực tế

Hydrogen fuel cell vehicles like the Toyota Mirai emit only water vapor from the tailpipe, as the hydrogen effectively combusts electrochemically.

Tầm quan trọng công nghiệp

Hydrogen combustion is central to the hydrogen economy for clean energy. It powers rocket engines (Space Shuttle main engine used liquid H2/O2) and fuel cells.

Tính chất

Loại: Combustion
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -571,6 kJ/mol

Phản ứng liên quan

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Frequently Asked Questions

What is the equation for Combustion of Hydrogen Gas?

The balanced equation is: 2H₂ + O₂ → 2H₂O.

What type of reaction is Combustion of Hydrogen Gas?

Combustion of Hydrogen Gas is a combustion reaction.

Is Combustion of Hydrogen Gas exothermic or endothermic?

Combustion of Hydrogen Gas is exothermic (releases energy). The enthalpy change (ΔH) is -571.6 kJ/mol.