Nuclear Fission: Which of the Following Descriptions Best Describes the Process

question 44

Multiple Choice

Nuclear fission: Which of the following descriptions best describes the process by which energy is released in a conventional nuclear reactor?

• A) The radiation given off by a naturally radioactive substance, uranium, is collected and used to make steam.
• B) Uranium is reacted with oxygen in a combustion process that releases large amounts of radioactivity and heat.
• C) Deuterium and tritium are joined together to form helium.
• D) Uranium, when bombarded by neutrons, splits into fragments and releases two or three neutrons, and these neutrons in turn strike more uranium nuclei that split, thereby setting off a chain reaction that releases energy.
• E) A uranium nucleus is energized to an excited state by neutron irradiation, and it then decays by emitting beta rays and gamma rays that heat water and create steam.

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