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Nuclear Chemistry and Radioactivity — Chemistry STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceChemistryNuclear Chemistry and Radioactivity4 Marks
Question
Distinguish between nuclear fission and nuclear fusion.
✓

Answer

Nuclear fissionNuclear fusion
  • It is the process in which a heavy nucleus splits up into two lighter nuclei of nearly equal masses.
  • It is the process in which two lighter nuclei combine together to form a heavy nucleus.
  • About 200 MeV of energy is available per fission in case of $ _{92}^{235} U$.
  • Energy available per fusion is much less but the energy per unit mass of material is much greater than that for fission of heavy nuclei.
  • The products of nuclear fission are, in general, radioactive.
  • The products of fusion are, in general, non-radioactive.

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