Nuclear weapon using the Ability to do work or diffuse heat. The unit of energy is th... release of See 'fusion'. reactions. Probably, the reactions 6Li (n, ) 3H + 4.8 Megaelectron volt, 1,000,000 eV. and H (d,n)4He + 17.6 Megaelectron volt, 1,000,000 eV. are involved. An Nuclear weapon using the energy released during the fission ... is used to fire the hydrogen bomb, i.e. to reach the temperature required for Formation of a heavy nucleus from lighter nuclei releasing e.... The explosion force achievable far surpasses that of atomic bombs, the destruction equivalent is that of several megatonnes trinitrotoluene, a chemical explosive. The first hydrogen bomb was fired on the Bikini Atoll on 1st March 1954.