Triple Alpha Process (Helium Burning)

34He → 12C + γ

概述

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.

参与者

角色 物质 系数 状态
反应物 Helium He 3 (g)
产物 Carbon C 1 (s)

日常示例

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

工业重要性

理解恒星核合成揭示了宇宙中碳和重元素的起源，是天体物理学和核物理学的基础理论，具有深远科学意义。

属性

类型
Nuclear
可逆
否
能量
放热
ΔH
-730000000.0 kJ/mol

相关反应

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.