Practice Initial-Rate Method - 5.2 | Unit 6: Chemical Kinetics | IB Grade 11: Chemistry
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Initial-Rate Method

5.2 - Initial-Rate Method

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Practice Questions

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Question 1 Easy

What is the Initial-Rate Method?

💡 Hint: Focus on when reactants' concentrations are stable.

Question 2 Easy

Why do we measure reaction rates at the beginning?

💡 Hint: Think about reaction consumption.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of the Initial-Rate Method?

To measure the average rate of reaction over time
To determine reaction rates at the start of the reaction
To analyze reaction products

💡 Hint: Think about when the concentrations are stable.

Question 2

True or False: The Initial-Rate Method enables the determination of reaction orders.

True
False

💡 Hint: Consider the relationships between factors measured.

1 more question available

Challenge Problems

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Challenge 1 Hard

A reaction shows an initial rate of 0.10 M/s when [A]=0.5 M and [B]=0.3 M. If [A] is doubled, and the initial rate is now 0.20 M/s, what is the reaction order respecting A?

💡 Hint: Consider the changes in rate relative to concentration changes.

Challenge 2 Hard

For a reaction with Rate = 0.10 M/s at [C]=0.1 M. If the concentration of C is tripled, what should the new rate be if the reaction order is 1 with respect to C?

💡 Hint: Think about how reaction rates scale with concentration in first-order reactions.

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