A breeder reactor converts relatively stable uranium 238 into the isotope plu- tonium 239. After 15 years it is determined that 0.043% of the initial amount Ao of plutonium has disintegrated. Find the half-life of this isotope if the rate of disintegration is proportional to the amount remaining.

Chemistry: Principles and Practice
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Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
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Chapter21: Nuclear Chemistry
Section: Chapter Questions
Problem 21.40QE
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1. A breeder reactor converts relatively stable uranium 238 into the isotope plu-
tonium 239. After 15 years it is determined that 0.043 % of the initial amount
Ao of plutonium has disintegrated. Find the half-life of this isotope if the rate
of disintegration is proportional to the amount remaining.
Transcribed Image Text:1. A breeder reactor converts relatively stable uranium 238 into the isotope plu- tonium 239. After 15 years it is determined that 0.043 % of the initial amount Ao of plutonium has disintegrated. Find the half-life of this isotope if the rate of disintegration is proportional to the amount remaining.
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