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Question over Topscore Chem Problem

Discussion in 'DAT Discussions' started by UTlonghornDDS, Aug 18, 2011.

  1. UTlonghornDDS

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    Hi,
    So I was doing a problem on one of the Topscore test, it says that half life (t1/2) is independent of concentration for all first order reaction? I thought it was dependent? Or is it independent because its really just the inverse of the first order reaction? Thanks.

    PS I was also wondering if Topscore chem is representative of the DAT?
     
  2. Demps

    Joined:
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    First order reaction half life:

    time = 0.693/k

    you can clearly see that half life time is independent of reactant concentration.
     
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