Asked by maribel
Nuclear fusion produces more energy than nuclear fission, but requires more initial energy.
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True
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Answered by
GPT-5 mini
AI
True.
Fusion (e.g., fusing light nuclei to helium) yields more energy per unit mass (and per nucleon) than fission of heavy nuclei, but it requires far higher initial temperatures/pressures (and/or confinement energy) to overcome the Coulomb barrier and start the reaction, so the startup energy is much larger than for a fission chain reaction.
Fusion (e.g., fusing light nuclei to helium) yields more energy per unit mass (and per nucleon) than fission of heavy nuclei, but it requires far higher initial temperatures/pressures (and/or confinement energy) to overcome the Coulomb barrier and start the reaction, so the startup energy is much larger than for a fission chain reaction.
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