A heavy nucleus P of mass number 240 and binding energy 7.6 MeV per nucleon splits into two nuclei Q and R of mass numbers 110, 130 and binding energy per nucleon 8.5 MeV and 8.4 MeV, respectively. Calculate the energy released in the fission. [2020 | Delhi | Section - B | SET - 1 Q.24]
Ans : B.E. of heavy nucleus P
= 240×7.6 MeV
=1824 MeV
B.E. of nucleus Q
=110×8.5 MeV
=935 MeV
B.E. of nucleus R
=130×8.4 MeV
=1092 MeV
Energy released
=[(935+1092)-1824] MeV
=[2027-1824] MeV
=203 MeV
