8. The fission of uranium- 235 is the primary source of power in a nuclear reactor. One of many possible fission reaction of uranium-235 is n+235U236U144Ba+89Kr+3n (a) Calculate the energy released by this reaction. (b) The fission fragments 144Ba and 89Kr are radioactive, decaying by successive emissions to stable nuclides. Refer to the Table of Nuclides to determine the stable end products of 144Ba and 89Kr decay. (c) Calculate the energy released by the decay of the fission fragments. (d) What is the overall energy release by the fission of uranium, including the decay of the fission fragments? 9. On 30 September 1999, workers at the Tokaimura reprocessing facility in Japan transferred 16.6kg of uranyl nitrate solution (enriched to 18.8% uranium-235) to a large tank that could safely hold no more than 2.4kg of the solution. The workers were startled by a sudden flash of blue light from a fission chain reaction. The chain reaction continued for nearly 20 hours. Two of the workers subsequently died from exposure to neutron radiation. (a) If 1mg of uranium-235 fissioned, how many nuclei reacted? (b) How many neutrons were released? (c) How much energy was released (in MeV and J )? 10. Compute the following: (a) Binding energy of the last neutron of 235U; (b) Binding energy of the last proton of 235U; (c) Binding energy of the 235U nucleus. 11. The most abundant metal in the universe (and sixth most abundant element) is iron. The most abundant isotope of iron is 56Fe. Compute the minimum energy required to carry out each of following processes: (a) Remove one proton from a 56Fe nucleus. (b) Remove one neutron from a 56Fe nucleus. (c) Dismantle a 56Fe nucleus into its component nucleons. (d) Split a 56Fe nucleus into two 28Al nuclei