![]() If this energy can be controlled, it can be used for constructive purpose. The uncontrolled fusion reaction (H- bomb) produce large amount of energy in a fraction of second. As nuclear fusion reaction requires high temperature, the problem for controlled fusion is to produce such high temperature, and to design a container to hold such high temperature gas. Since the process of nuclear fusion requires a very high temperature, the nuclear fusion reactions are called thermonuclear reactions and the energy released is termed as the thermonuclear energy. For this not only a high pressure is necessary but also the kinetic energy of nuclei must have high value of the order of 0.1 MeV. Hence they must be brought very near to each other to overcome this electrostatic force of repulsion so that they come within the range of nuclear force. The nuclear fusion process however is not easy to carry out because the nuclei undergoing fusion are positively charged and they would repel each other very strongly. Fuel is either in solid or liquid state.ħ. In fission, heavy elements like uranium split apart into lighter elements, releasing energy in the process. High temperature and pressure is needed.Ħ. Fission, which powers today's nuclear reactors, is the opposite of fusion. Energy released per fusion is about 23 MeV.ģ. Energy released per fission is about 200 MeV.Ģ. Fusion involves combining of two lighter nuclei into a heavy nucleus.Ģ.Fission involves breaking up of a heavy nucleus into lighter nuclei.The differences between Fission and Fusion are: Back Practice Set Thirty Three Practice Set One Practice Set Two Practice Set Three Practice Set Four Practice Set Five Practice Set Six Practice Set Seven Practice Set Eight Practice Set Nine Practice Set Ten Practice Set Eleven Practice Set Twelve Practice Set Thirteen Practice Set Fourteen Practice Set Fifteen Practice Set Sixteen Practice Set Seventeen Practice Set Eighteen Practice Set Nineteen Practice Set Twenty Practice Set Twenty One Practice Set Twenty Two Practice Set Twenty Three Practice Set Twenty Four Practice Set Twenty Five Practice Set Twenty Six Practice Set Twenty Seven Practice Set Twenty Eight Practice Set Twenty Nine Practice Set Thirty Practice Set Thirty One Practice Set Thirty Two Practice Set Thirty Four Practice Set Thirty Five Practice Set Thirty Six Practice Set Thirty Seven Practice Set Thirty Eight Practice Set Thirty Nine Practice Set Fourty Practice Set Fourty One Practice Set Fourty Two Practice Set Fourty Three Practice Set Fourty Four Practice Set Fourty Five Practice Set Fourty Six Practice Set Fourty Seven Practice Set Fourty Eight Practice Set Fourty Nine Practice Set Fifty Practice Set Fifty One Practice Set Fifty Two Practice Set Fifty Three Practice Set Fifty Four Practice Set Fifty Five Practice Set Fifty Six Practice Set Fifty Seven Practice Set Fifty Eight Close Menu
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