Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Arrhenius equation used for?
💡 Hint: Think about reaction rates and temperature.
Question 2
Easy
What is the universal gas constant value in the Arrhenius equation?
💡 Hint: It’s a constant used for calculations in chemistry.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the Arrhenius equation model?
- A relationship between pressure and volume
- How temperature affects reaction rate
- The solubility of gases
💡 Hint: Recall the topics we've covered on reaction kinetics.
Question 2
True or False: Higher activation energy means a faster reaction rate.
- True
- False
💡 Hint: Consider the meaning of activation energy.
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Challenge Problems
Push your limits with challenges.
Question 1
The rate constant for a chemical reaction is known to increase from 3.0 x 10^-5 to 1.2 x 10^-4 s^-1 as the temperature rises from 298 K to 308 K. Using the Arrhenius equation, calculate the activation energy (Ea).
💡 Hint: Find the natural log of the ratio of the rate constants and set up the equation to solve for Ea.
Question 2
A chemical reaction has an activation energy of 50 kJ/mol. How much faster will the reaction be at 350 K compared to 300 K based on the Arrhenius equation?
💡 Hint: Set up your calculations carefully, remembering to convert kilojoules to joules for R.
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