| Reaction Coordinate |
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| CATEGORIES ABOUT REACTION COORDINATE | |
| physical chemistry | |
| quantum chemistry | |
| molecular physics | |
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These coordinates can sometimes represent a real coordinate system, although, for more complex reactions especially, this can be difficult. Reaction coordinates are often plotted against Enthalpy (often but erroneously plotted against Free Energy ) to demonstrate in some schematic form the energy landscape or Potential Energy Surface associated to the reaction. For this reason, reaction coordinates usually represent continuous pathways which are locally minimal in terms of energy. Local maxima are associated to Transition State s They are determining the Reaction Rate within the RRKM theory. Frequently exaggerated diagrams are used, to accommodate superimposed diagrams or to make a discussion point about the enthalpy along the process. For example, in the Homolytic dissociation of hydrogen, an apt coordinate system to choose would be the coordinate corresponding to the Interatomic Distance . |
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