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How has nuclear fusion always warmed the earth from the inside?
Much of the heat in the core of the Earth is residual from heat created billions of years back, and some of this was created in fusion reactions in stars. There are other nuclear actions at work in the core of the Earth, however. The more important of these is nuclear decay, which is what most radioactive atoms undergo. This releases energy in the form of heat, which is the trapped underground until it can escape - a very long time. Less commonly, some isotopes, most notably uranium-235, undergo fission. This is a much more energetic process, but is not common because there is not much of this isotope around.
What causes the process of nuclear fusion to start in stars?
It is generally thought that as the gasses needed to create a star collect, the gravity that is pulling them together will compress and heat that gas so much that at some point fusion will spontaneously begin.
What happens from the sun's nuclear fision?
Not much to speak of. There is no significant amount of nuclear fission going on in the Sun.
What is the measurement of how much heat energy is required for a substance to melt?
The measurement of how much heat energy is required for a substance to melt is called the heat of fusion. It is the amount of energy required to change a substance from a solid to a liquid at its melting point.
Does lightning produce more power than nuclear fusion?
No, nuclear fusion produces vastly more power than lightning. Nuclear fusion is the energy source of the sun and other stars, generating massive amounts of energy through the fusion of atoms. Lightning, while powerful in a localized sense, is a discharge of static electricity that pales in comparison to the energy output of nuclear fusion.
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
Is Neptune a sun?
No, Neptune is a planet. Stars are hot, glowing with the heat from nuclear fusion in their core. Neptune is cold, and much too small to have fusion.
How much of the uk's power is generated by nuclear power?
20% of the worlds power is generated by nuclear power
How does the sun make its heat?
The heat and pressure in the sun's core is so intense nuclear fusion occurs spontaneously there. This reaction liberates energy, much of it ultimately in the form of heat.
How has nuclear fusion always warmed the earth from the inside?
Much of the heat in the core of the Earth is residual from heat created billions of years back, and some of this was created in fusion reactions in stars. There are other nuclear actions at work in the core of the Earth, however. The more important of these is nuclear decay, which is what most radioactive atoms undergo. This releases energy in the form of heat, which is the trapped underground until it can escape - a very long time. Less commonly, some isotopes, most notably uranium-235, undergo fission. This is a much more energetic process, but is not common because there is not much of this isotope around.
How much nuclear fusion is used to day?
None
How much waste does nuclear fusion produce?
Nuclear fusion produces very little waste compared to nuclear fission. The waste produced by nuclear fusion is mainly low-level radioactive material, which is easier to manage and has a shorter lifespan.
Why does the sun give off so much heat?
The heat is produced in the interior, due to nuclear fusion. Sooner or later, that heat has to get out.It is kinda like the birds and the bees the have fussoin together to make heat :D
How much energy is generated from freezing 2.5g water?
The amount of energy generated from freezing 2.5g of water can be calculated using the specific heat capacity of water and the heat of fusion for water. The energy released would be equal to the heat of fusion of water (334 J/g) multiplied by the mass of water (2.5g). By multiplying these values, you can determine the total energy released during the freezing process.
How much more heat would Jupiter have to generate to become a star?
Jupiter would have to be quite a bit larger, 75% larger, for nuclear fusion to start, turning it into a star. It's the mass that counts, as the pressure in the core needs to reach 10,000oK to trigger nuclear fusion. The intense heat comes only after a star is born.
What is main disadvantage of fusion?
It requires almost as much energy to create nuclear fusion as the energy it creates. :)
How much of the world's energy is currently generated through nuclear power?
Around 10% of the world's energy is generated from nuclear power.
