Practice Connecting Mechanism To The Rate Expression (5.5.5) - Module 5: Chemical Kinetics

Practice: Connecting Mechanism to the Rate Expression

Lesson 5.5.5Module 5: Chemical Kinetics

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9 questions

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6 sample questions

Question 1.
What does the term 'rate-determining step' refer to?
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Think of it as the bottleneck in a process.
Question 2.
Do intermediates appear in the overall rate expression?
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Consider how intermediates are formed and consumed in the reaction.
3Question 3.
What is the primary role of the rate-determining step?
- To dictate the overall reaction rate
- To increase the number of products
- To change the reaction conditions
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Consider what aspect of a reaction would be the slowest part.
4Question 4.
True or False: Intermediates are included in the final rate expression.
- True
- False
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Remember what intermediates do in a reaction.
Question 5.
Given the reaction: A + B -> C, with a proposed mechanism containing a rate-determining step of A + B -> D, then D -> C. How would you express the overall rate?
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Concentrate on what the RDS contains.
Question 6.
If the addition of a catalyst alters the mechanism of a reaction, what effect does this have on the rate law, if any?
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Think about the roles of catalysts and how they affect pathways.

5 more questions in this section. Enroll free to practise them all.