Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome results when stellar iron fusion ceases within a supergiant star?
A)Core collapse accelerates rapidly✓
B)Helium flash ignites prematurely
C)CNO cycle reactions intensify slightly
D)Star's outer layers stably contract
💡 Explanation
Core collapse accelerates because iron fusion consumes, rather than releases, energy; therefore, the radiation pressure from fusion declines significantly, triggering gravity to overwhelm electron degeneracy pressure, leading to rapid implosion rather than stability or other fusion processes.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which consequence results when stellar hydrogen core fusion ceases?
- Which mechanism causes stimulated emission in semiconductor laser diodes?
- Which outcome arises when degenerate atomic orbitals mix due to symmetry mismatch during molecular bonding?
- Which risk significantly increases when the average binding energy per nucleon decreases in stars?
- Which mechanism causes increased redshift from objects near blackholes?
- Which consequence results when excessive heat increases nitrous oxide decomposition?
