Review30 - Modified from College Physics, 8th Ed., Serway...

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Modified from College Physics , 8 th Ed., Serway and Vuille. For the quizzes and tests, you should know all the concepts and equations in this summary. Section 30.1: Nuclear Fission In nuclear fission , the total mass of the products is always less than the original mass of the reactants. Nuclear fission occurs when a heavy nucleus splits, or fissions, into two smaller nuclei. The lost mass is transformed into energy, electromagnetic radiation, and the kinetic energy of daughter particles. A nuclear reactor is a system designed to maintain a self-sustaining chain reaction. Nuclear reactors using controlled fission events are currently being used to generate electric power. A useful parameter for describing the level of reactor operation is the reproduction constant K , which is the average number of neutrons from each fission event that will cause another event. A self-sustaining reaction is achieved when K = 1. Section 30.2: Nuclear Fusion In nuclear fusion, two light nuclei combine to form a heavier nucleus. This type of nuclear reaction occurs in the Sun, assisted by a quantum tunneling process that helps particles get through the Coulomb barrier. Controlled fusion events offer the hope of plentiful supplies of energy in the future. If it could be
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Review30 - Modified from College Physics, 8th Ed., Serway...

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