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

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Practice Questions

Test your understanding with targeted questions related to the topic.

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.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

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.

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Challenge Problems

Push your limits with challenges.

Question 1

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.

Question 2

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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