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1 vote
0 answers
51 views

Define a rate-determining step and an energy barrier for a multi-step reaction profile

I am currently making reaction profile by means of DFT calculations. I am able to correctly draw a whole reaction profile. However, I am struggling to find what exactly is the energy barrier of a ...
thchem's user avatar
  • 398
2 votes
2 answers
114 views

Is there an algebraic form for the textbook reaction coordinate curves?

So here is a curve often used in textbooks to illustrate a reaction coordinate. It's a nice short-hand device to learn the relationship between kinetic and thermodynamic parameters that control the ...
urquiza's user avatar
  • 731
0 votes
0 answers
45 views

How to find entropy of chemical network reaction?

I have the following system of reactions: $$ \begin{aligned} \ce{X_1 + Y_1 &<=>[$k_{21}$][$k_{12}$] X_2} \\ \ce{X_2 &<=>[$k_{32}$][$k_{23}$] X_3} \\ \ce{X_3 &<=&...
Dari Obukhova's user avatar
1 vote
1 answer
123 views

Mathematical properties of free Gibbs energy

I'm wandering, if some mathematical properties of the free Gibbs energy (also called thermodynamic potential) are well known. For instance in chemistry, if $n_i^\alpha$ denotes the number of moles of ...
Tanj's user avatar
  • 133
25 votes
1 answer
9k views

What does "reaction coordinate" mean? What does it mean when a reaction has TWO reaction coordinates?

I'm familiar with the concept of a reaction coordinate from high school chemistry as some generic conformational parameter that all of the intermediate states of a chemical reaction lie upon. Recently,...
Dan's user avatar
  • 1,552