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Spontaneous fission rate to halflife equivalence 
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#1
Apr2611, 01:32 PM

P: 11

1. The problem statement, all variables and given/known data
The spontaneous fission rate for U238 is roughly 1 fission per gram per 100 seconds. Show that this rate is the equivalent to a halflife for spontaneous fission of ~5.5x10^{15} years 2. Relevant equations none that I can find in my book 3. The attempt at a solution I'm thinking this is just basically a conversion of units problem, but want to check that with someone else. Not entirely sure where I would start so any help would be appreciated. 


#2
Apr2611, 04:13 PM

HW Helper
PF Gold
P: 3,440

1. How many U238 atoms are there in 1 gram?
2. If one of them decays every 100 seconds, how long will you have to wait until half of them have decayed? 


#3
Apr3011, 04:18 PM

P: 11

thank you knew it had to be fairly simple just overthinking it!



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