Fisión del uranio-235

235U + 1n → 141Ba + 92Kr + 31n

Descripción general

A uranium-235 nucleus absorbs a slow neutron and splits into barium-141 and krypton-92, releasing three neutrons and approximately 200 MeV of energy. This is one of many possible fission product combinations. The three released neutrons can trigger further fissions, creating a chain reaction. One kg of U-235 releases energy equivalent to 20,000 tonnes of TNT.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Uranio U 1 (s)
Producto Bario Ba 1 (s)
Producto Kriptón Kr 1 (g)

Ejemplo cotidiano

Nuclear power plants use controlled U-235 fission to generate about 10% of the world's electricity without direct CO₂ emissions.

Importancia industrial

Fuente de aproximadamente el 10% de la electricidad mundial en plantas nucleares y base de los sistemas de propulsión naval.

Preguntas frecuentes

What is the equation for Fisión del uranio-235?
The balanced equation is: ²³⁵U + ¹n → ¹⁴¹Ba + ⁹²Kr + 3¹n.
What type of reaction is Fisión del uranio-235?
Fisión del uranio-235 is a nuclear reaction.
Is Fisión del uranio-235 exothermic or endothermic?
Fisión del uranio-235 is exothermic (releases energy). The enthalpy change (ΔH) is -19200000000.0 kJ/mol.