Triple Alpha Process (Helium Burning)

34He → 12C + γ

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Chất phản ứng Helium He 3 (g)
Sản phẩm Carbon C 1 (s)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Understanding stellar nucleosynthesis explains the cosmic abundance of elements and guides nuclear astrophysics research.

Tính chất

Loại
Nuclear
Thuận nghịch
Không
Năng lượng
Tỏa nhiệt
ΔH
-730000000,0 kJ/mol

Phản ứng liên quan

Alpha Decay of Radon-222 Neutron Capture by Uranium-238 Beta Decay of Strontium-90 Beta Decay of Cobalt-60 Beta Decay of Carbon-14 Proton-Proton Chain (Solar Fusion) Uranium-235 Fission Positron Emission of Carbon-11 Positron Emission of Fluorine-18 (PET Scan) Alpha Decay of Radium-226

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.