Binding energy
- 2. Presented by: Ahmed Nawaz Assigned By: Prof. Dr. Aziza Aftab
- 3. Contents Binding Energy Mass Defect Example of Binding energy & Mass Defect
- 4. Binding Energy Binding energy is the energy required to disassemble or break a whole system into separate parts. Nuclear binding energy is the energy that would be required to disassemble or break the nucleus of an atom into its component parts. These component parts are neutrons and protons, which are collectively called nucleons.
- 5. The mass of an atomic nucleus is usually less than the sum of the individual masses of the constituent protons and neutrons (according to Einstein's equation E=mc2) and this 'missing mass' is known as the mass defect, and represents the energy that was released when the nucleus was formed. Mass defect
- 6. Keep this in 1 atomic mass unit = 1µ = 931 MeV mp = 1.0073µ mn = 1.0087µ
- 8. 92U→ 90Th+ 2 4 He reactant product Mass reactant= 232.037146 amu Mass product= 228.028731 + 4.002603= 232.031334 amu
- 9. Difference between mass of reactant and mass of products ∆M= mass of reactant − mass of products ∆M= 232.037146 amu - 232.031334 amu ∆M=0.005812 amu Mass defect
- 10. Convert mass defect into energy E= mass defect (c2) E= 0.005812 amu (931 MeV/ amu) E=5.4 MeV Binding Energy
- 12. 0 1n+ 92 235U→ 56 138Ba+ 36 95Kr+ 30 1n reactants products Mass reactant= 235.0439 amu + 1.0087 amu = 236.0526 amu Mass product= 137.905 + 94.900 + 3.026= 235.831 amu
- 13. Difference between mass of reactants and mass of products ∆M= mass of reactants − mass of products ∆M=236.0526 amu - 235.831 amu ∆M= 0.222 amu Mass defect
- 14. Convert mass defect into energy E= mass defect (c2) E=0.222 amu(931 MeV/ amu) E=206 MeV Binding Energy
- 16. THANK YOU