Calculadora de Energía de Fisión Nuclear Gratis
Calcula la energía liberada en reacciones de fisión nuclear a partir del defecto de masa de los productos.
Energy Released per Fission
207.82 MeV
Energy Released per Fission vs Total Mass of Reactants
Fórmula
## Nuclear Fission Energy Fission releases energy because the products have higher binding energy per nucleon than the parent nucleus. The energy comes from the mass difference between reactants and products. ### Formula **E = delta_m × 931.494 MeV/u** A typical U-235 fission releases about 200 MeV, which is roughly 80 million times more energy per reaction than a typical chemical reaction (~2.5 eV for TNT).
Ejemplo Resuelto
U-236 fissions: total reactant mass 236.0526 u, total product mass 235.8295 u.
- 01delta_m = 236.0526 - 235.8295 = 0.2231 u
- 02E = 0.2231 × 931.494 = 207.8 MeV
- 03E = 207.8 × 1.602 × 10⁻¹³ = 3.33 × 10⁻¹¹ J per fission
Preguntas Frecuentes
How much energy does 1 kg of U-235 produce?
About 8.2 × 10¹³ J (82 TJ), equivalent to about 20,000 tons of TNT. This is roughly 2 million times the energy content of coal per unit mass.
Where does the fission energy go?
About 85% goes to kinetic energy of fission fragments, 2.5% to prompt neutrons, 2.5% to prompt gamma rays, 3% to beta decay energy, 3% to delayed gamma rays, and 4% to antineutrinos (lost).
What about energy from fusion vs fission?
Per reaction, fission releases more energy (~200 MeV vs ~17.6 MeV for D-T fusion). But per unit mass, fusion releases more because the fuel is much lighter. Fusion fuel has about 4x the energy density.
Aprender