radioactive decay


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Emily Duggan 1F
Posts: 42
Joined: Fri Sep 29, 2017 7:07 am

radioactive decay

Postby Emily Duggan 1F » Sun Mar 04, 2018 6:25 pm

Is radioactive decay a first order reaction? If so, why?

Ozhen Atoyan 1F
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Joined: Thu Jul 27, 2017 3:01 am
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Re: radioactive decay

Postby Ozhen Atoyan 1F » Sun Mar 04, 2018 6:34 pm

Radioactive decay is a first order reaction because the decay rate is proportional to the first power of radioactive atoms present. Therefore, this matches with first order kinetics.

Christy Lee 2H
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Re: radioactive decay

Postby Christy Lee 2H » Sun Mar 04, 2018 8:20 pm

Does this mean that radioactive decay only works for a reaction if there's one reactant since it's a first order reaction?

Nehal Banik
Posts: 64
Joined: Thu Jul 13, 2017 3:00 am

Re: radioactive decay

Postby Nehal Banik » Sun Mar 04, 2018 9:15 pm

Not sure, one of the reactants can be zero order, or it can be a slow step where on of the reactants doesn't necessarily affect the rate.

Harjas Sabharwal 1G
Posts: 42
Joined: Sat Jul 22, 2017 3:01 am

Re: radioactive decay

Postby Harjas Sabharwal 1G » Sun Mar 04, 2018 9:35 pm

If you think about radioactive decay it almost always involves a large atom decaying into smaller ones or giving off gamma rays (energy), so it is probably safe to say that radioactive decay only has one reactant and thus is first order.


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