Proton-Proton Chain (Solar Fusion)
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41H → 4He + 2e+ + 2νe + energy
ภาพรวม
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.
ผู้เข้าร่วม
ตัวอย่างในชีวิตประจำวัน
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.
ความสำคัญทางอุตสาหกรรม
Understanding stellar nucleosynthesis is fundamental to astrophysics and helps guide terrestrial fusion reactor design.
คุณสมบัติ
- ประเภท
- Nuclear
- ย้อนกลับได้
- ไม่
- พลังงาน
- คายความร้อน
- ΔH
- -2520000000.0 kJ/mol