Calculadora de Energia de Fusão Nuclear
Calcule a energia liberada em reações de fusão nuclear em estrelas.
Energy Released
629,128,625,115,772.400 J
Energy Released vs Hydrogen Mass
Formula
## 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.
Exemplo Resolvido
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.
Perguntas Frequentes
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.