Interpreting Energy Graphs

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Objective

I can analyze energy graphs to determine the total energy of a closed system.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Define activation energy and explain its significance in a chemical reaction.

2

Explain the difference between an exothermic and an endothermic reaction in terms of energy changes and enthalpy (ΔH). How can you identify each type of reaction on a potential energy diagram?

Part 3 of 3

Exit ticket

Quick comprehension check

On an energy graph, the reactants are at 200 kJ and the products are at 150 kJ. What is the change in energy (ΔH) for this reaction? On an energy graph, the transition state is at 500 kJ and the reactants are at 300 kJ. What is the activation energy for the forward reaction?

Sample answer included in the free materials

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