Which mechanism causes sustained heat generation in a CANDU reactor core?

💡 Explanation

Self-sustaining nuclear fission provides continuous energy because neutron absorption by uranium-235 causes nuclear instability and splitting, therefore releasing kinetic energy and more neutrons to propagate the chain reaction, rather than moderation or bremsstrahlung slowing the chain.

• Which phenomenon reduces the theoretical maximum efficiency of a Rankine cycle steam turbine?
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• Which outcome results during uranium enrichment at elevated temperatures?
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• Which mechanism allows a microwave oven to heat food containing water molecules?
• Which phenomenon impedes miniaturization of ferromagnetic hard drives?