Calculateur d'Énergie de Fusion Nucléaire
Calculez l'énergie libérée lors de réactions de fusion nucléaire.
Energy Released
629,128,625,115,772.400 J
Energy Released vs Hydrogen Mass
Formule
## Stellar Nuclear Fusion Energy In the pp-chain and CNO cycle, four hydrogen nuclei fuse into one helium nucleus. The mass difference (0.7%) is converted to energy via E = mc². ### Formula **E = 0.007 × m × c²** where m is the hydrogen mass consumed and c = 299 792 458 m/s. The Sun converts about 600 million tonnes of hydrogen per second, releasing 3.8 × 10²⁶ W.
Exemple Résolu
Energy from fusing 1 kg of hydrogen.
- 01E = 0.007 × 1 × (2.998e8)²
- 02= 0.007 × 8.988e16
- 03= 6.291e14 J
- 04≈ 150 kilotons of TNT equivalent.
Questions Fréquentes
Why only 0.7% efficiency?
In hydrogen-to-helium fusion, 99.3% of the original mass remains as helium. Only the mass deficit (binding energy difference) is converted to energy.
How much hydrogen does the Sun burn per second?
About 620 million tonnes per second, of which about 4.3 million tonnes become energy.
How does fusion compare to fission?
Fission converts about 0.09% of mass to energy; fusion converts about 0.7%, making fusion roughly 8 times more energy-dense per unit mass.