Exam 19: Nuclear Chemistry: Applications to Energy and Medicine

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A barrel of oil produces about 5.9 106 kJ of energy. Fission of 235 g of uranium-235 releases 2.1 1010 kJ of energy. How many barrels of oil are equivalent to 1 kg of uranium-235?

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Cobalt-60 decays to nickel-60. What particle is emitted?

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K-capture is associated with ________

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The argon-40 method of radioisotope dating was developed in the Geology Department at Stony Brook University to determine the age of rocks brought back from the moon. This method assumes that no argon-40 gas was trapped when the molten rock solidified, and that no argon-40 can escape from the solid rock. One sample that was analyzed had a ratio of potassium-40 to argon-40 of 0.100 (NK/NAr = 0.100). Potassium-40 decays into argon-40 by positron emission with a half-life of 1.28 109 years. How many years ago was this moon rock formed?

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Write nuclear reaction equations to show how helium-4 nuclides are produced from protons in our sun.

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