NUCLEAR FISSION

1. What is meant by the term "nuclear fission"?

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2. Write a balanced nuclear equation for the fission of U-235.

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3. What is the role of the neutron on the left side of the equation?

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4. a) What property should the neutron have in order for a high probability of a collision between the neutron and the uranium nucleus?

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b) How is this condition ensured during a controlled fission reaction?

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c) How is a fission reaction controlled or even stopped?

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5. Explain carefully the nature of the uranium used in fission reaction. Why is the process used to prepare this uranium called enrichment?

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6. What 2 things may happen to the neutrons that are produced in a fission reaction of uranium?

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7. What is meant by the term "critical mass"?

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8. What is meant by the term "Chain Reaction"?

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9. What is the difference between a controlled fission reaction and the same fission reaction that occurs when a nuclear bomb is detonated?

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10. On a separate page, write a clear description of the nature of the fission reaction that occurs in a typical nuclear power station. Your description should include the words fission, chain reaction, enrichment, critical mass, moderator, and control rods. This is the only question that is for hand in. 10 marks.