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Using an Arrhenius plot 
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#1
Mar2512, 12:13 PM

P: 90

Heres the question:
Kinetics is probably my weakest area in chemistry so I'm struggling. To find the shelf life, I need to use the Arrhenius equation but I don't know the activation energy Ea or the A constant. So I converted 2 those percentages into rates and got: At 40C, rate = 0.082 %/month At 60C, rate = 0.39 %/month I know that if I plot 1/T vs. lnk, I get an Arrhenius plot and then I can find Ea from the slope and A from the yintercept but I don't have k. Can I just use the rates that I have instead of k? 


#2
Mar2512, 01:16 PM

Admin
P: 23,528

You have two data points and two unknowns, that means you should be able to find both solving system of two equations.



#3
Mar2512, 02:06 PM

P: 90

Can you elaborate on that a bit. Do you mean use simultaenous equations?



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