Register to reply 
Using an Arrhenius plot 
Share this thread: 
#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: 23,363

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?



Register to reply 
Related Discussions  
Estimate the reynolds number plot du/dy, U= root (U^2+V^2) and plot du/dx  Mechanical Engineering  0  
What to plot as the errors for a moving average plot of temperature?  Set Theory, Logic, Probability, Statistics  6  
How to plot multiple iterations of a while loop on one plot? [MATLAB]  Math & Science Software  1  
Rasterized density plot + countour plot in Mathematica (to solve EPS issues)  Math & Science Software  0  
Finding Activation Energy From Arrhenius Plot  Biology, Chemistry & Other Homework  3 