Hi there all,(adsbygoogle = window.adsbygoogle || []).push({});

I'm new at this whole idea of using a forum, but am unfortunately stuck on some of the theory behind my high school nuclear physics teaching. Basically its to do with the mass deficit and E=mc^2. We have learnt so far that the uncombined nucleons of an atom have more mass than the combined atom...and this mass deficit is converted into binding energy by E=mc^2, as a result of strong nuclear force. So I get that part i think, its just when you have a nuclear reaction, for example the fusion of deuterium and tritium to make alpha particle and a neutron. I have fiddled around with the numbers, playing with the mass deficit, and it seems to me that the binding energy of tritium and deuterium, plus the energy from the mass deficit, is equal to the binding energy in the helium nucleus. So I am stumped as to how any other energy is thus emitted, as the mass deficit gives the energy for additional binding energy in the helium nucleus...? I know of course that there must be heaps emitted, but to me it appears that it all goes into the binding energy of product....

If anyone could shed some light on this little dilemma of mine it would be greatly appreciated,

Thanks,

Kcodon

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# Binding Energy and Mass Deficit

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