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What will a star become when it longer undergoes nuclear fusion?
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What is old dead small star?
Technically a dead star is when a star no longer undergoes nuclear fusion. Depending on the mass of the original star this will either be a white dwarf, neutron star or black hole. These are called stellar remnants.
How does nuclear fusion create elements inside stars?
Nuclei of small atoms fuse together to form nuclei of larger atoms. The process can continue to form larger atoms until, after iron, the fusion is no longer exothermic and so absorbs energy.
What happens when a pure substance undergoes a chemical changes?
when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
If nuclear fusion in the suns core suddenly stopped working today would the sky be dark in the daytime tomorrow?
It has been calculated that it would take roughly 8 years from the end of fusion in the core to the surface of the sun beginning to cool. It would then take 8 minutes before we would notice this cooling on the earth.
What is happening inside a star while it expands into a subgiant?
When a Star is is undergoing nuclear Fusion, for example our Sun, at this moment it is Fusing Hydrogen to Helium, this creates outward thermal energy, but the gravity at the core stops the Sun from expanding, this is called equilibrium, where gravity is equal to outward force. However when the Sun runs out of Hydrogen, Nuclear Fusion will cease and the gravitational pull of the core will lessen, allowing for the sun to expand. Eventually the core will contract under its own gravitational pull and Bamb fusion will take place again. This time converting helium to carbon. Gravity will again be maintained and again equilibrium will be restored, though this time our sun will be Slightly bigger and cooler. This will go on and on over many cycles. Each time getting larger and cooler until fusion can no longer take place.
When do you say that stars are dead?
When the star no longer undergoes nuclear fusion.
What is old dead small star?
Technically a dead star is when a star no longer undergoes nuclear fusion. Depending on the mass of the original star this will either be a white dwarf, neutron star or black hole. These are called stellar remnants.
Why did nuclear power become popular?
Because it lasts longer
Is white dwarf a dead star?
Yes - in the sense that it no longer produces energy. In other words, the star has run out of fuel for nuclear fusion.
Reaction dead star?
A dead star is one that no longer experiences nuclear fusion. This happens when a star runs out of hydrogen it can use to convert to helium.
What will a less massive supernova become?
Supernovae refer to the sudden expulsion of mass and energy when a large star can no longer fuse material matter. It results from the core collapsing into itself because it no longer has nuclear fusion to counteract it's own gravity and it's too dense for electron degeneracy to prevent collapse. .
How does nuclear fusion create elements inside stars?
Nuclei of small atoms fuse together to form nuclei of larger atoms. The process can continue to form larger atoms until, after iron, the fusion is no longer exothermic and so absorbs energy.
How long does it take for spent nuclear fuel to become safe?
This takes around 6.000.000 years but it could take longer depending on the amount of nuclear fuel spilt.
What happens to a dead star?
Technically a dead star is when a star no longer undergoes nuclear fusion. Depending on the mass of the original star this will either be a white dwarf, neutron star or black hole. These are called stellar remnants.
Which stars do not have nuclear fusion occurring in their core?
All stars "burn" by the process of nuclear fusion. When fusion has been completed, the star dies. That can occur in several different ways and the interested party could look into the topic of stellar evolution. Neutron stars, black holes and white dwarfs are examples of end stages of stellar evolution. Some stars never really reach the stage of fusion and such large objects are called brown dwarfs. If Jupiter were not a planet, it might be deemed a brown dwarf.
How much longer will the sun undergo nuclear fusion?
about 5 million times a second however being a fierce fire power is very modest destiny of the heat generated per gallon
How long will nuclear energy be on earth?
nuclear power is going to be around for much longer, more fission reactors will be built to compensate in the increase in energy usage and more research is being done to make fusion energy which will replace fission reactors(this is quite a while yet before fusion reactors can be used to produce use usable energy for long periods of time).
