A heavy nucleus X of mass number 240 and binding energy per nucleon 7.6 MeV is split into two fragments Y and Z of mass numbers 110 and 130. The binding energy of nucleons in Y and Z is 8.5 MeV per nucleon. Calculate the energy Q released per fission in MeV.

Asked by Topperlearning User | 2nd Jun, 2015, 01:09: PM

Expert Answer:

Total energy of nucleus X = 240 x 7.6 = 1824 MeV
Total energy of nucleus Y = 110 x 8.5 = 935 MeV
Total energy of nucleus Z = 130 x 8.5 = 1105 MeV
Therefore, energy released from fission, Q = 935 + 1105 - 1824 = 216 MeV

Answered by  | 2nd Jun, 2015, 03:09: PM