Proton-Proton Chain (Solar Fusion)

41H → 4He + 2e+ + 2νe + energy

Descripción general

The proton-proton chain converts four hydrogen nuclei into one helium-4 nucleus, two positrons, and two electron neutrinos in a multi-step process. This reaction powers the sun and most main-sequence stars, releasing 26.7 MeV per helium nucleus. The sun converts 600 million tonnes of hydrogen to helium every second.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Hydrogen H 4 (g)
Producto Helium He 1 (g)

Ejemplo cotidiano

All sunlight, and therefore virtually all life on Earth, is powered by this fusion reaction occurring in the sun's core at 15 million degrees.

Importancia industrial

Modelo para la investigación en fusión nuclear controlada como fuente de energía limpia e inagotable.

Propiedades

Tipo
Nuclear
Reversible
No
Energía
Exotérmico
ΔH
-2520000000,0 kJ/mol

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Frequently Asked Questions

What is the equation for Proton-Proton Chain (Solar Fusion)?
The balanced equation is: 4¹H → ⁴He + 2e⁺ + 2νₑ + energy.
What type of reaction is Proton-Proton Chain (Solar Fusion)?
Proton-Proton Chain (Solar Fusion) is a nuclear reaction.
Is Proton-Proton Chain (Solar Fusion) exothermic or endothermic?
Proton-Proton Chain (Solar Fusion) is exothermic (releases energy). The enthalpy change (ΔH) is -2520000000.0 kJ/mol.