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OpenStudy (anonymous):
the radioactive substance krypton-91 has a very short half life of about 10 seconds what is the decay constant for this substance
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OpenStudy (anonymous):
post it in physics section
OpenStudy (anonymous):
its math though
OpenStudy (akshay_budhkar):
its easy your answer is ln2/10
OpenStudy (akshay_budhkar):
or 0.693/10
OpenStudy (anonymous):
agree!!!
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OpenStudy (anonymous):
since the graph is exponential!
OpenStudy (akshay_budhkar):
we had a formula on physics which said half life=ln2/k where k is the decay constant
OpenStudy (akshay_budhkar):
you can derive it too. first order kinetics..
OpenStudy (anonymous):
thanks!
OpenStudy (akshay_budhkar):
you are welcome
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