Uranium-235 Fission

235U + 1n → 141Ba + 92Kr + 31n

概要

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.

参加者

役割 物質 係数 状態
反応物 Uranium U 1 (s)
生成物 Barium Ba 1 (s)
生成物 Krypton Kr 1 (g)

日常の例

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

産業上の重要性

核分裂は世界440基の原子炉から年間約2,700 TWhの電力を発電し、信頼性の高いベースロード電源を提供する。

特性

タイプ
Nuclear
可逆的
いいえ
エネルギー
発熱性
ΔH
-19200000000.0 kJ/mol

関連する反応

Alpha Decay of Radium-226 Alpha Decay of Radon-222 Alpha Decay of Thorium-232 Neutron Capture by Uranium-238 Beta Decay of Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Electron Capture by Beryllium-7

Frequently Asked Questions

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