Combustion of Hydrogen Gas

2H2 + O2 → 2H2O

概要

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).

参加者

役割 物質 係数 状態
反応物 Oxygen O 1 (g)
反応物 Hydrogen H 2 (g)
生成物 Water H₂O 2 (l)

日常の例

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

産業上の重要性

水素燃焼はクリーンエネルギーのための水素経済の中心です。ロケットエンジン(スペースシャトルのメインエンジンは液体H₂/O₂を使用)や燃料電池の動力源となっています。

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.