Define Nuclear Energy and Its Types | Class 10

One of the important topics of the chapter Sources of Energy is Nuclear Energy and out of this topic the question which is very important ...

One of the important topics of the chapter Sources of Energy is Nuclear Energy and out of this topic the question which is very important is "Define Nuclear Energy and Its Type."
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Define Nuclear Energy and Its Type. | Class 10


What is Nuclear Energy?

Nuclear Energy: The energy released during nuclear reactions is called nuclear energy because it comes from the nuclei of atoms. Nuclear energy is generated by two types of nuclear reactions. The first is Nuclear Fissionand second is Nuclear Fusion.

What are the Types of Nuclear Energy?

  1. Nuclear Fission: In a process called nuclear fission, the nucleus of a heavy atom (such as uranium, plutonium or thorium), when bombarded with low-energy neutrons, can be split apart into lighter nuclei. When this is done, a tremendous amount of energy is released if the mass of the original nucleus is just a little more than the sum of the masses of the individual products. The fission of an atom of uranium, for example, produces 10 million times the energy produced by the combustion of an atom of carbon from coal. In nuclear fission, the difference in mass, Dm, between the original nucleus and the product nuclei gets converted to energy E at a rate governed by the famous equation, E = Dm c2, first derived by Albert Einstein in 1905, where c is the speed of light in vacuum. In nuclear science, energy is often expressed in units of electron volts (eV): 1 eV = 1.602 × 10–19 joules. It is easy to check from the above equation that 1 atomic mass unit (u) is equivalent to about 931 mega electron volts (MeV) of energy.
  2. Nuclear Fusion : Fusion means joining lighter nuclei to make a heavier nucleus, most commonly hydrogen or hydrogen isotopes to create helium, such as 2H + 2H ® 3He ( + n) It releases a tremendous amount of energy, according to the Einstein equation, as the mass of the product is little less than the sum of the masses of the original individual nuclei. Such nuclear fusion reactions are the source of energy in the Sun and other stars. It takes considerable energy to force the nuclei to fuse. The conditions needed for this process are extreme – millions of degrees of temperature and millions of pascals of pressure. The hydrogen bomb is based on thermonuclear fusion reaction. Nuclear fusion takes place at a very high temperature. Hence, nuclear fusion reaction is also known as thermonuclear reaction.



CONCLUSION:

  • Nuclear Energy: The energy released during nuclear reactions is called nuclear energy because it comes from the nuclei of atoms. It is of Two Types. The First is Nuclear Fission and the second is Nuclear Fusion.
  • Nuclear Fission: In a process called nuclear fission, the nucleus of a heavy atom (such as uranium, plutonium or thorium), when bombarded with low-energy neutrons, can be split apart into lighter nuclei.
  • Nuclear Fusion: Fusion means joining lighter nuclei to make a heavier nucleus, most commonly hydrogen or hydrogen isotopes to create helium, such as 2H + 2H will react to give 3He ( + n) It releases a tremendous amount of energy.


ALSO READ:

  1. Explain Isotopes with its Properties and Applications.
  2. What are the Properties of Cathode rays?
  3. What are the properties of Anode rays?

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