During a typical nuclear fission reaction, the maximum percentage of liberated energy is released in the form of___________________?
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Answer: B. kinetic energy of fission products
Explanation
During nuclear fission, the heavy nucleus splits into two large charged fission product fragments. The immense electrostatic repulsion between these fragments accelerates them to very high velocities. Consequently, the vast majority of the released binding energy manifests as kinetic energy of these fragments. Einstein mass-energy equivalence dictates that the lost mass during fission converts directly into energy. Typical fission events release approximately two hundred mega-electron-volts of total thermal energy. Fission products include various radioactive isotopes of elements like barium, krypton, and xenon.
This kinetic energy is immediately converted into thermal heat as the fragments collide with surrounding fuel atoms. Coolant fluids absorb this thermal energy to produce high-pressure steam for electrical power generation. Managing this intense localized heat production is a primary engineering concern in reactor design. Option A is wrong because prompt neutrons carry away only a small fraction of total energy. Option C is incorrect because gamma rays account for only a minor percentage of prompt energy. Option D describes delayed decay energy rather than the maximum instantaneous energy release.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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