You have a misapprehension there, it is uranium oxide that is used in fuel rods, not fossil fuel
In general, nuclear energy comes from the energy associated with atomic nuclei. There is nuclear fusion, which happens in stars and in fusion weapons, and there is nuclear fission. Nuclear fusion is the "combining" of lighter atomic nuclei to create heavier ones, and many fusion reactions release energy. (Again, think of stars.) In contrast, nuclear fission is the "splitting" of atomic nuclei to release energy. The latter is technology that we've come to use fairly widely, and we have developed fission nuclear weapons and the nuclear reactor to tap nuclear energy via fission. Let's look at the latter device, the reactor. The fission of nuclear fuel (also known as atomic fuel, such as uranium or plutonium) is where we get nuclear energy. And what happens during nuclear fission is that the nuclei of fuel atoms absorb neutrons and fission (split), releasing lots of energy. In fission, that larger atomic nucleus breaks into a pair of smaller ones, and these fission fragments recoil with a lot of kinetic energy. The fuel traps the fission fragments, and the energy they came away with is converted into thermal energy in the fuel. We derive nuclear energy by tapping the energy of formation of atomic nuclei via fusion or fission. This is advanced technology that is less than a century old. We're still working to use it well and wisely.
Nuclear Fission
Fuel in a nuclear reactor is heated by fission reactions. In fission, fuel atoms absorb a neutron, become unstable, and "split apart" into a two approximately equal parts. These parts are called fission fragments, and they come away from the fission event with tremendous kinetic (mechanical) energy. As this happens in a fuel element, the atomic nuclei can travel only a tiny distance before slamming into nearby atoms. This activity is extremely violent on the atomic scale, and it generates a lot of thermal energy (heat). The heat will get fuel element very hot, and that thermal energy will be collected and carried away by the primary coolant in the reactor.
If you think to nuclear fuel for nuclear power reactors it is generally sintered uranium dioxide (UO2) pellets.
Yes, by spontaneous fission, but the nymber of neutrons is very small because the halflife of the spontenuoes fission is: for Uranium 235: (1,0 ± 0,3).1019 years for Uranium 238: (8,20 ± 0,10).1015years
The fission happens in the fuel, which is usually in fuel rods inside the reactor. The rods are spaced at a particular distance apart and fill the reactor.
In breeder nuclear fission more fuel is produced than what consumed. In conventional nuclear fission less fuel is produced than what is consumed.
In general, nuclear energy comes from the energy associated with atomic nuclei. There is nuclear fusion, which happens in stars and in fusion weapons, and there is nuclear fission. Nuclear fusion is the "combining" of lighter atomic nuclei to create heavier ones, and many fusion reactions release energy. (Again, think of stars.) In contrast, nuclear fission is the "splitting" of atomic nuclei to release energy. The latter is technology that we've come to use fairly widely, and we have developed fission nuclear weapons and the nuclear reactor to tap nuclear energy via fission. Let's look at the latter device, the reactor. The fission of nuclear fuel (also known as atomic fuel, such as uranium or plutonium) is where we get nuclear energy. And what happens during nuclear fission is that the nuclei of fuel atoms absorb neutrons and fission (split), releasing lots of energy. In fission, that larger atomic nucleus breaks into a pair of smaller ones, and these fission fragments recoil with a lot of kinetic energy. The fuel traps the fission fragments, and the energy they came away with is converted into thermal energy in the fuel. We derive nuclear energy by tapping the energy of formation of atomic nuclei via fusion or fission. This is advanced technology that is less than a century old. We're still working to use it well and wisely.
A neutron is absorbed by an atoms nucleus
No, fission is still a fuel in - waste out reaction. Eventually the supply of nuclear fuel would run out.
Nuclear fission
Uranium is nuclear fuel not renewable.The source of energy is the nuclear fission.
In a nuclear fission reaction, a freely moving neutron undergoes neutron capture and initiates the nuclear fission of a fuel atom.
The fission happens in the fuel, which is usually in fuel rods inside the reactor. The rods are spaced at a particular distance apart and fill the reactor.
Fossil fuel burning
Nuclear Fission
nuclear fission results in the presence of used nuclear fuel that should be:either reprocessed (to gain back the remaining uranium and produced plutonium and to get the fission products as vitrified waste), orstored as high active waste; either under water or in dry storage casks.