The Sun S Energy Comes From Which Nuclear Reaction
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Hydrogen atoms are fused together to produce helium.
The sun s energy comes from which nuclear reaction. And helium 3 helium 4 fusion into two helium 4s accounts for 3 of the reactions by number releasing 19 99 mev of energy for each reaction. In fact 99 of the energy produced by the sun takes place within 24 of the sun s radius. The solar fusion process begins when two protons the nuclei of hydrogen atoms merge to produce a deuterium nucleus. Because this chain of reactions starts with two hydrogen nuclei that is two single protons it is called the proton proton chain in step 1 two protons collide and fuse forming deuterium which is designated 2 h or d.
The sun s energy comes from nuclear reactions that fuse lighter nuclei into heavier ones releasing energy in the process. Deuterium is the heavy isotope of hydrogen with a nucleus consisting of a proton and a neutron. 10 8 of the sun s total energy. Nuclear reactions in the sun core 15 million o k photosphere visible surface 5700 o k photons no longer collide can escape chromosphere 10 000 o k corona 2 million o k low density but high temperature due to magnetic fields and violent convective motions of lower layers source of x rays.
Every second the sun fuses 620 billion kg of hydrogen nuclei protons into helium to produce 384 6 trillion trillion joules of energy per second this is equivalent to the energy released in the explosion of 91 92 billion megatons of tnt per second. Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles neutrons or protons the difference in mass between the reactants and products is manifested as either the release or absorption of energy this difference in mass arises due to the difference in atomic binding energy between the atomic nuclei. A positron and a neutrino. The core is the only part of the sun that produces an appreciable amount of heat through fusion.
As a result of that fusion energy is released in the form of heat. Two additional particles are released. Sun the ultimate nuclear fusion reactor. The principal nuclear reactions inside the sun convert hydrogen into helium in three stages.
Nuclear fusion is the process that occurs in the sun that produces energy.
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