activation energy

Arrhenius Equation:

Moderators: Chem_Mod, Chem_Admin

Dahriel Aron 3A
Posts: 60
Joined: Fri Sep 25, 2015 3:00 am

activation energy

Postby Dahriel Aron 3A » Mon Feb 15, 2016 4:18 pm

How can you find the activation energy from just knowing the order of the reaction and k?

Chem_Mod
Posts: 19542
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 882 times

Re: activation energy

Postby Chem_Mod » Tue Feb 16, 2016 12:05 am

You can find the Ea the value of k at two temperatures using the Arrhenius relation

Dahriel Aron 3A
Posts: 60
Joined: Fri Sep 25, 2015 3:00 am

Re: activation energy

Postby Dahriel Aron 3A » Tue Feb 16, 2016 6:06 pm

in using the arrhenius how would you know what to plug in for A?

Anurag Bajjuri 1H
Posts: 10
Joined: Fri Sep 25, 2015 3:00 am

Re: activation energy

Postby Anurag Bajjuri 1H » Wed Feb 17, 2016 3:22 pm

The A value or pre-exponential factor would be given to you in this case if you are trying to find the activation energy. It would also be the y-intercept in a graph of lnk vs 1/T.


Return to “Arrhenius Equation, Activation Energies, Catalysts”

Who is online

Users browsing this forum: No registered users and 2 guests