8.9 Potential Energy Diagrams Notes
A. Potential Energy Diagram (also called: Reaction Coordinate)
1. Potential energy diagrams show changes in ___________
energy of substances over a course of a reaction.
2. Reactants _________________________ Products
a) ___________________: substances that are
present at the beginning of the reaction
b) ___________________: substances that are
present at the end of the reaction
c) _____________________________ (transition
state): a high energy intermediate substance that is
formed during the reaction.
1. Very ____________
2. Usually not shown in the _________ (like above)
Activation energy: Reactants to Activated Complex (Hill)
∆H = Products - Reactants
