Potential Energy Diagrams Worksheet (With Answers)
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Potential Energy Diagrams
Graph 1: Use the potential energy diagram for the reaction X + Y -> Z to complete the chart below.
60.0
C
F
50.0
X + Y
40.0
30.0
D
A
B
20.0
Z
10.0
E
0.00
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.0
Time (ms)
Letter
Term
Description
A
PE of Reactants
The combined amounts of the potential energy of the reactants.
B
PE of the Activated Complex
The potential energy of the activated complex.
C
Activation Energy
The amount of energy required to form the activated complex.
D
The amount of energy given off (or absorbed if it was endothermic)
Heat of the Reaction
in the reaction.
E
PE of the Products
The potential energy of the product.
Graph 2
1. Draw a potential energy diagram for an endothermic reaction.
2. Label your drawing with the following letters:
A=PE of products
D=Energy of activation
B=PE of reactants
E=Heat of reaction
C=PE of the activated complex
D
C
E
A
B
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