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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper I covers inorganic chemistry.

UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper I

Q8(b). Binding-energy curve

Question

Explain the concept of Nuclear Binding Energy and hence the binding energy curve. How does the curve give information about nuclear fission and nuclear fusion as energy source.

Answer in brief

Binding energy is the energy required to separate a nucleus into nucleons. The curve of B/A rises rapidly for light nuclei, peaks near Fe/Ni and decreases slowly for heavy nuclei.

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CoversBinding-energy curveNuclear energy

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