Question

What is the difference between Nuclear fission and nuclear fusion?

Answer 1

Nuclear fission:-In this process big big atoms are destroyed and produced a large heat energy.This process is known as nuclear fission.
Nuclear fussion:-In this process small small atoms are join together during the reaction


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Answer 2

In case of fission, when neutrons are bombarded on a heavy nucleus, it splits in two nearly equal light fragments whereas In case of fusion, at very high temperature and high pressure two light nuclei combine to form a heavy nucleus..

In case of fission, this reaction is possible at ordinary temperature and ordinary pressure whereas In case of fusion, this reaction is possible only at a very high temperature (near about 10 to the power 7 Kelvin) and a very high pressure..

In one fission reaction nearly 190MeV energy is released whereas In one fusion reaction nearly 24.7MeV energy is released..