After shutdown, which mechanism causes continued heat generation within a nuclear reactor core?

💡 Explanation

Radioactive decay generates post-shutdown heat because unstable fission daughter products undergo beta and gamma decay, releasing energy as radiation. Therefore, radioactive decay sustains heat output, rather than neutron activation which declines rapidly after shutdown.

• If a catalytic converter operates below 250°C, which outcome predominantly occurs due to constraints on molecular motion?
• Which outcome reduces jet engine thrust when ambient temperature increases?
• Which outcome occurs when a Carnot engine running at cryogenic temperatures operates in an irreversible cycle?
• Which mechanism reduces hydrogen embrittlement in high-strength steel exposed to acidic environments?
• Which distortion results when extreme mass influences spacetime?
• Which outcome occurs when ionic contamination increases insulator capacitance within a resonant inductive circuit?