When comparing the binding energy of the initial heavy nucleus to the resulting fragments, where does the substantial energy liberated during fission come from?

Answer

The difference in binding energy; the fragments are more tightly bound

The released energy originates from the difference between the binding energy of the original nucleus and the combined binding energies of the lighter fragments, as the fragments are more tightly bound and thus more stable.

When comparing the binding energy of the initial heavy nucleus to the resulting fragments, where does the substantial energy liberated during fission come from?

#Videos

Nuclear fission | Physics | Khan Academy - YouTube

Atomenergyreactionnuclearfission