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In this Video, you will able to learn what is nuclear fusion
and fission. What are examples of fusion and
fission. Differences between fusion and fission
and similarities between them. Let us first discuss what is nuclear fusion.
Nuclear fusion is a nuclear reaction in which two or more
atomic nuclei collide at very high speed and join to form a new type of
atomic nucleus. Now let us see an example- When deutron and tritron
fuse together, they form helium with the release of
enormous energy. Now, let us discuss what is nuclear fission.
Nuclear fission is either nuclear reaction
or a radioactive decay process in which the nucleus
of an atom splits into lighter nuclei. Now let us see an example
When U235 nucleus is bombarded with neutron
it splits into Kripton and Barium with the release of
enormous energy. Now see main differences
Nuclear fusion occurs in stars, such as the Sun while Nuclear Fission reaction does not
normally
occur in nature. For nuclear fusion, extremely high
energy is required while for nuclear fission, it takes little energy
as compared to fusion to split two atoms. acounts. The energy released by fusion
is
three to four times greater than the energy released by fission.
Now see the similarities. Both require
high temperatures. Both
produce large amount of energy. Both
involve altering the nuclei of different elements.
And both work best under high pressure.
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