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https://quizlet.com/12231022/astronomy-multiple-choice-15-16-17-20-flash-cards/
An iron core cannot support a star because iron cannot fuse with other nuclei to produce energy Why does the luminosity of a high-mass star remain nearly constant as the star burns heavy elements in its core, even though it is producing millions of times more energy per second than it did on the main sequence?
https://quizlet.com/38730590/astro-2-flash-cards/
An iron core cannot support a star because: Iron supplies too much pressure. Iron cannot fuse with other nuclei to produce energy. Iron has poor nuclear binding energy. Iron is in the form of a gas, not a solid, in the center of a star.
https://scoutingweb.com/an-iron-core-cannot-support-a-star-because/
An Iron Core Cannot Support A Star Because ... Iron supplies too much pressure. Iron cannot fuse with other nuclei to produce energy. Iron has poor nuclear binding energy. Iron is in the form of a gas, not a solid, in the center of a star. Front. Reveal the answer to …
https://futurism.com/what-happens-when-stars-produce-iron
Matter cannot be created or destroyed—it can only be turned into ... or even form a black hole. The iron in the star’s core isn’t the reason why the star went supernova, its overall mass ...
https://answers.yahoo.com/question/index?qid=20080519172512AARuPgp
May 19, 2008 · a. Iron is too dense, and produces too much gravity for the star to resist collapse. b. Iron is heavy, and settles to the center rather than exerting pressure. c. It is impossible for iron to fuse with any other elements at all. d. Iron has a low binding energy and decays rapidly to lead. e. Iron cannot fuse with other elements and produce additional energy in fusion.
https://physics.stackexchange.com/questions/80256/why-cant-iron-fusion-occur-in-stars
As you correctly stated in normal situation the star cannot sustain the process. This doesn't mean that there are no such reactions going on in the core. The difference is that during the pre-supernova phase of the star the production of iron is negligible compared to the star. When it goes supernova, it produces a comparable amount of iron.
https://www.coursehero.com/file/14582039/Homework-11/
An iron core cannot support a star against gravity because: Select one: a. iron is the heaviest element, and sinks upon creation Check Subscribe to view the full document.
http://www.nhn.ou.edu/~baron/ast1504/mt3_version_B_key_small.pdf
Answer Key for Exam B 2 points each ... An iron core cannot support a massive main-sequence star because iron: (a) has poor nuclear binding energy. (b) cannot fuse with other nuclei to produce energy. (c) supplies too much pressure. (d) fusion only occurs in a degenerate core.
https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve
In general, the larger a star, the shorter its life, although all but the most massive stars live for billions of years. When a star has fused all the hydrogen in its core, nuclear reactions cease. Deprived of the energy production needed to support it, the core begins to collapse into itself and becomes much hotter.
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