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Topic 9 – Kinetics and Equilibrium

11. Potential energy diagram: Identify and interpreting energy measurements

Answer questions 1 and 2 based on the potential energy diagram below.

1. Which arrow represents the potential energy of the reactants?
1) 1 2) 2 3) 3 4) 4

2. Heat of reaction, ∆H , is represented by which arrow?
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1) 1 2) 2 3) 3 4) 4
Answer questions 3 and 4 based on the diagram below.

3. Energy of the activated complex is measured by which arrow in the above diagram?
1) A Teacher Preview Copy
3) C
4) D

2) B

4. Which arrow represents the activation energy for the reverse reaction?
2) A 2) B 3) C 4) D
Answer questions 5 through 7 based on the diagram below.

5. Activation energy for the forward reaction is represented by which arrow in the above diagram?
3) C

4) D

1) A
2) B

6. Which measurement correctly represents the heat content of the products?
1) A 2) B 3) C 4) D

7. ∆H of this reaction is measured by which arrow?
1) A 2) B 3) C 4) D

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