Activation Energy Worksheet
This worksheet covers key concepts related to activation energy in chemical reactions, suitable for Grade 11 Chemistry students.
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Activation Energy Worksheet
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Read each question carefully and provide your best answer. Show all your work for calculations.
1. What is activation energy?
The energy released during a chemical reaction.
The minimum energy required to initiate a chemical reaction.
The total energy of the reactants.
The change in enthalpy of a reaction.
2. How does a catalyst affect activation energy?
It increases the activation energy.
It decreases the activation energy.
It has no effect on activation energy.
It changes the enthalpy of the reaction.
3. The species formed at the peak of the activation energy barrier is called the .
4. In an endothermic reaction, the products have energy than the reactants.
5. Increasing the temperature of a reaction will decrease its activation energy.
True
False
6. Activation energy is always a positive value.
True
False
7. Explain the relationship between activation energy and reaction rate.
8. Draw a simple energy diagram for an exothermic reaction, labeling the reactants, products, activation energy, and enthalpy change ($ΔH$).