Using an Arrhenius plot

mycotheology

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 y-intercept but I don't have k. Can I just use the rates that I have instead of k?

Borek

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

mycotheology

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

Borek

Yes.