Triple Alpha Process (Helium Burning)

34He → 12C + γ

概要

Three helium-4 nuclei fuse to form carbon-12 in stars through the triple-alpha process, which occurs above 100 million K. Two helium nuclei first form unstable beryllium-8, which immediately captures a third helium to form carbon-12 via the Hoyle state resonance. Fred Hoyle predicted this resonance to explain carbon abundance.

参加者

役割 物質 係数 状態
反応物 Helium He 3 (g)
生成物 Carbon C 1 (s)

日常の例

All the carbon in your body, in every living thing, and in diamonds was forged inside stars by this triple-alpha process.

産業上の重要性

恒星内元素合成の理解は元素の宇宙存在度を説明し、核天体物理学の研究を導く。

特性

タイプ
Nuclear
可逆的
いいえ
エネルギー
発熱性
ΔH
-730000000.0 kJ/mol

関連する反応

Alpha Decay of Radium-226 Alpha Decay of Radon-222 Alpha Decay of Thorium-232 Neutron Capture by Uranium-238 Beta Decay of Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Electron Capture by Beryllium-7

Frequently Asked Questions

What is the equation for Triple Alpha Process (Helium Burning)?
The balanced equation is: 3⁴He → ¹²C + γ.
What type of reaction is Triple Alpha Process (Helium Burning)?
Triple Alpha Process (Helium Burning) is a nuclear reaction.
Is Triple Alpha Process (Helium Burning) exothermic or endothermic?
Triple Alpha Process (Helium Burning) is exothermic (releases energy). The enthalpy change (ΔH) is -730000000.0 kJ/mol.