First order kinetic equation

Reference no: EM13300013

Tablets of KI were distributed to people living around Chernobyl seven days after the nuclear reactor explosion occurred, to help flush radioactive 131I isotope out of their bodies. 131I has a half-life of 8 days.

a) What percentage of the 131I released by the explosion would have remained by that time? Use the first order kinetic equation: [A] = [A]o e-kt

b) How long would it have taken for 99.5% of the released 131I to undergo radioactive decay?

Reference no: EM13300013

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