Magnesium Reacting with Steam
Mg + H2O → MgO + H2
概要
Magnesium reacts with steam to produce magnesium oxide and hydrogen gas. The reaction is vigorous and highly exothermic. Hot magnesium burns with an intense white flame even in steam, making this a dramatic and instructive demonstration of the high reactivity of magnesium.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 反応物 | Magnesium Mg | 1 | (s) |
| 反応物 | Water H₂O | 1 | (g) |
| 生成物 | Magnesium Oxide MgO | 1 | (s) |
| 生成物 | Hydrogen H | 1 | (g) |
日常の例
Magnesium fires cannot be extinguished with water because magnesium reacts with steam, producing hydrogen gas that adds fuel to the fire.
産業上の重要性
この反応はマグネシウム加工工場での火災安全管理において重要な意味を持つ。マグネシウム火災に水（水蒸気）を使用すると反応が加速するため、乾燥砂や特殊消火剤が必要となる。
特性
- 可逆的
- いいえ
- エネルギー
- 発熱性
- ΔH
- -361.0 kJ/mol
関連する反応
Lithium Reacting with Water
Aluminum Reducing Chromium Oxide (Aluminothermic)
Iron Reacting with Hydrochloric Acid
Iron Displacing Copper from Copper Sulfate
Magnesium Reacting with Hydrochloric Acid
Copper Displacing Silver from Silver Nitrate
Iron Reacting with Copper(II) Chloride
Magnesium Reacting with Sulfuric Acid
Magnesium Reacting with Nitric Acid
Chlorine Displacing Iodine from Potassium Iodide
Frequently Asked Questions
What is the equation for Magnesium Reacting with Steam?
The balanced equation is: Mg + H₂O → MgO + H₂.
What type of reaction is Magnesium Reacting with Steam?
Magnesium Reacting with Steam is a single replacement reaction.
Is Magnesium Reacting with Steam exothermic or endothermic?
Magnesium Reacting with Steam is exothermic (releases energy). The enthalpy change (ΔH) is -361.0 kJ/mol.