On Feb 25, 12:08 pm, higis wrote:
The term binding energy is not so intuitive, isn't it.
When you have hydrogen atoms and you fuse them
into helium. It would release energy as in hydrogen
bomb. So how can you say it is binding energy
when the energy is gone.

To decompose the helium back into hydrogen.
It is said that it need energy input. If you can
pull helium apart against the strong force turning
into hydrogen atoms (gets separated). Is the energy
to pull it apart consist the binding energy that
would reconstitute the parts? Or do you need to
supply another energy that would make up the
binding energy?

higis

Note that fusion of ordinary hydrogen p + p is not what is going on in
an H bomb. p + p is a weak interaction which would useless for
generating any yield in a feasible bomb. The typical reactants in an H
bomb I would guess are deuterium and tritium. The latter being
produced at the time of detonation via neutron capture.