Three deuteron nuclei ( 1 H 2 ) fuse , 21.6 MeV is energy released and nucleus of helium ( 2 He 4 ) is formed .
In this process , a large amount of energy is released .
Nuclear fusion takes place at very high temperature approximately about 10 7 K and at very high pressure 10 6 atmosphere .
Hydrogen bomb is based on nuclear fusion . The source of Sun ’ s energy is the nuclear fusion taking place at sun .
Thermonuclear Energy
The energy released during nuclear fusion is know as thermonuclear energy . Protons are needed for fusion while neutrons are needed for fission process .