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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is activation energy?
💡 Hint: Think about what is required for a reaction to get started.
Question 2
Easy
Give an example of a catalyst.
💡 Hint: Consider substances that speed up reactions.
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 the minimum energy required for a reaction?
- Activation Energy
- Catalyst
- Enthalpy
💡 Hint: Consider the term used when discussing energy barriers.
Question 2
True or False: Catalysts are consumed during a reaction.
- True
- False
💡 Hint: Think about what happens to catalysts after they speed up a reaction.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given that two reactions have activation energies of 50 kJ/mol and 100 kJ/mol respectively, discuss how this difference affects their rates at room temperature.
💡 Hint: Consider how temperature influences the energy distribution of particles.
Question 2
If a catalyst lowers the activation energy by 20 kJ/mol, how does this affect the reaction rate? Calculate the rate increase if the original rate is known.
💡 Hint: Think about how lowering the energy barrier impacts the number of particles successfully initiating the reaction.
Challenge and get performance evaluation