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26 June, 00:12

The decay constant of plutonium-239, a waste product from nuclear reactors, is 2.88*10-5year-1. part a what is the half-life of 239pu?

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  1. 26 June, 01:22
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    24100 years

    You can easily convert from decay constant to half-life by using the relationship:

    H = ln (2) / D

    where

    H = half life

    D = decay constant

    ln (2) = natural logarithm of 2.

    So

    H = ln (2) / D

    H = 0.693147181/2.88x10^-5 1/year

    H = 2.41x10^4 year

    H = 24100 year
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