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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define activation energy.
💡 Hint: Think about the energy barrier that needs to be overcome.
Question 2
Easy
What happens if the activation energy is high?
💡 Hint: Consider how it relates to the energy needed for molecules to react.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is activation energy?
💡 Hint: Think of it as the energy barrier that needs to be crossed for a reaction to occur.
Question 2
True or False: A lower activation energy leads to slower reaction rates.
- True
- False
💡 Hint: Consider how the energy of molecules impacts movement and reaction rates.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If the activation energy for a particular reaction is 75 kJ/mol at 298 K, how would a temperature increase from 298 K to 308 K affect the rate constant, assuming it follows the Arrhenius equation? Use values where relevant.
💡 Hint: Use R = 8.314 J/mol·K for calculations.
Question 2
A reaction without a catalyst has an activation energy of 100 kJ/mol, while a catalyzed pathway requires only 50 kJ/mol. Compare the expected rates of these two reactions at 298 K.
💡 Hint: Considering how much more accessible the catalyzed pathway makes the reaction is key!
Challenge and get performance evaluation