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    hey,

    I was working on a group project and came across a problem.

    the arrhenius equation states that k should be proportioanl to e^(-1/T)

    But I also know that rate should grow exponentially with temperature. However, the proportioanlity i said before does not show this, it says it grows a bit and then reaches a limit.

    Can someone tell me what the graph of rate or a reaction against temperature should look like and why (mathematically?)


    Thank you!!!
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    (Original post by cyril_)
    hey,

    I was working on a group project and came across a problem.

    the arrhenius equation states that k should be proportioanl to e^(-1/T)

    But I also know that rate should grow exponentially with temperature. However, the proportioanlity i said before does not show this, it says it grows a bit and then reaches a limit.

    Can someone tell me what the graph of rate or a reaction against temperature should look like and why (mathematically?)


    Thank you!!!
    you are quite correct.

    BUT it is the natural log of k that is proportional to -Ea/RT

    This is because k = Ae-Ea/RT

    So taking natural logs

    lnk = lnA - Ea/RT

    In which a plot of lnk against 1/T has the form of a straight line.
 
 
 
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