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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the pre-exponential factor A represent in the Arrhenius equation?
💡 Hint: Think about the conditions under which A is considered.
Question 2
Easy
In which range does A typically vary for simple bimolecular reactions?
💡 Hint: What does a higher value for A indicate about collisions?
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 does the pre-exponential factor A indicate about collisions?
- It indicates the speed of the reaction
- It reflects the frequency of effective collisions
- It is a measure of temperature effect
💡 Hint: Think about A in the context of molecular interactions.
Question 2
True or False: A is always equal to or greater than 1.
- True
- False
💡 Hint: Consider how molecular orientation affects collisions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a reaction that proceeds at a slow rate with a pre-exponential factor A = 10^5 and an activation energy Ea = 50 kJ/mol. Estimate the rate constant k at 300 K and discuss the implications.
💡 Hint: Make sure to convert Ea accurately to J/mol.
Question 2
A reaction has A = 10^12 and Ea = 75 kJ/mol. Compare the rate of this reaction at 300 K with another where A = 10^9 and Ea = 70 kJ/mol, and evaluate which reaction is faster.
💡 Hint: Focus on how both factors contribute to the rate constants calculated.
Challenge and get performance evaluation