NUCLEAR FUSION Process of combining two light nuclei to

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Presentation transcript:

NUCLEAR FUSION Process of combining two light nuclei to form a heavier nucleus The process occurs at a very high temperature. There is mass defect in the reaction. Mass defect change to nuclear energy. This process also occurs on the sun surface. At the end of the process,it produces ; One heavier nucleus One neutron Nuclear energy

NUCLEAR FUSION Hydrogen-2 + + energy neutron Helium Hydrogen-3

H He n NUCLEAR FUSION + + energy EQUATION OF NUCLEAR FUSSION H 2 1 3 He 4 n + + energy H-2 = 2.01410 a.m.u H-3 = 3.01605 a.m.u He-4 = 4.00260 a.m.u n = 1.00867 a.m.u Calculate the nuclear energy produced in the process above.

H He n NUCLEAR FUSION + + energy EQUATION OF NUCLEAR FUSSION 2 1 3 4 + + energy Mass before = 2.01410 + 3.01605 Mass after = 4.00260 + 1.00867 = 5.03015 a.m.u = 5.01127 a.m.u Mass defect = 5.03015 – 5.01127 = 0.01888 a.m.u = 0.01888 x 1.66 x 10-27 H-2 = 2.01410 a.m.u H-3 = 3.01605 a.m.u He-4 = 4.00260 a.m.u n = 1.00867 a.m.u = 3.134 x 10-29 kg E = mc2 = 3.134 x 10-29 x (3 x 108)2 = 2.82 x 10-12 J

PAST YEARS QUESTION A large amount of energy is released when two light nuclei combine to form a heavy nucleus. What is the name of the process ? A. Chain reaction. B. Nuclear reaction. C. Nuclear fission. D. Nuclear fusion.