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A supernova
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∙ 8y ago
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What kind of reactions provide a star with energy?
Stars obtain energy from a reaction called nuclear fusion. Nuclear fusion causes lighter elements to become heavier elements. The most common reaction fuses hydrogen into helium. But helium can fuse further, to even heavier elements. This releases energy until you reach the element iron. Anything heavier than iron consumes energy, rather than releasing it, when it is formed by nuclear fusion.thermonuclear fusion
Why can't massive stars generate energy from iron fusion?
Because iron has no more excess binding energy left to release. Iron fusion consumes energy, it does not generate it.
Why is iron significant to understanding how a supernova occurs?
Iron cannot release energy by fusion. When a star has used up all the lighter elements and has just iron left, it has no more nuclear "fuel". That causes the star to contract then explode very violently as a supernova.
Why are all elements heavier then iron created during a supernova?
The rapid collapse of the star compresses atoms together and may cause nuclear fusion and make heavier elements.
What is the most massive element that can be formed by nuclear fusion with the liberation of energy?
iron
What kind of reactions provide a star with energy?
Stars obtain energy from a reaction called nuclear fusion. Nuclear fusion causes lighter elements to become heavier elements. The most common reaction fuses hydrogen into helium. But helium can fuse further, to even heavier elements. This releases energy until you reach the element iron. Anything heavier than iron consumes energy, rather than releasing it, when it is formed by nuclear fusion.thermonuclear fusion
What force is responsible for crushing or collapsing stars?
A supernova is caused the the fusion of (in most cases helium) molecules in iron. Once you reach iron, you can't use fusion. Thus, the star can't produce the energy to keep it stable and gravity causes it to collapse.
When fusion occurs it creates what?
iron
Would you still have to remove the fusion monsters as a result of fusion gate if you have imperial iron wall?
If Imperial Iron Wall is in play you can't activate the effect of fusion gate at all.
Why can't massive stars generate energy from iron fusion?
Because iron has no more excess binding energy left to release. Iron fusion consumes energy, it does not generate it.
Why is iron significant to understanding how a supernova occurs?
Iron cannot release energy by fusion. When a star has used up all the lighter elements and has just iron left, it has no more nuclear "fuel". That causes the star to contract then explode very violently as a supernova.
Why are all elements heavier then iron created during a supernova?
The rapid collapse of the star compresses atoms together and may cause nuclear fusion and make heavier elements.
Does nuclear fusion create thermal energy?
Yes, fusion is exothermic until nickel & iron are produced.
What is the change of molten iron cooling and solidifying?
When molten iron cools and solidifies, this is called "fusion".
What does the sun burn to make something else?
The sun "burns" hydrogen to make helium. At 10 million degrees Kelvin, hydrogen begins to fuse into helium. In other, larger stars all the hydrogen will fuse to become helium, then all the helium will fuse to become beryllium, all the beryllium will fuse to become carbon, and so on, until it reaches iron. Fusion no longer produces energy after iron, so the star either collapses or goes supernova. "Burning" is not the correct term, fusion is.
Is iron compound mixture elements?
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
Is iron a compound mixture element?
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
