standard free energy of activation and Ea

Moderators: Chem_Mod, Chem_Admin

Michelle_Ahn_2N
Posts: 10
Joined: Wed Sep 21, 2016 2:58 pm

standard free energy of activation and Ea

Postby Michelle_Ahn_2N » Sun Mar 05, 2017 4:52 pm

when getting standard free energy of activation, is it okay to use the formula of
Ea= standard enthalpy of activation +RT since -Tdelta Standard Entropy of activation is negligible? So my question is does it matter which formula out of delta G formula and Ea formula, we use to get delta G?

Thanks in advance for your reply!

Alexandra_Shambayate_2L
Posts: 14
Joined: Wed Sep 21, 2016 2:57 pm

Re: standard free energy of activation and Ea

Postby Alexandra_Shambayate_2L » Sun Mar 05, 2017 4:58 pm

I believe it doesn't really matter. Both equations are calculating the same deltaG, it's just that the one that includes deltaH -TdeltaS is more accurate than the -RTlnK equation when finding deltaG, and Ea is found through the equation deltaH+RT


Return to “*Free Energy of Activation vs Activation Energy”

Who is online

Users browsing this forum: No registered users and 1 guest