Practice Compare pairs of experiments - 5.3.1.3 | Module 5: Chemical Kinetics | IB Grade 12-Chemistry
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5.3.1.3 - Compare pairs of experiments

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens to the rate of a zero-order reaction if the concentration of the reactant is doubled?

💡 Hint: Think about what ‘zero-order’ means for the rate.

Question 2

Easy

In a first-order reaction, how does the rate change if the reactant concentration is halved?

💡 Hint: Remember, first-order means a direct relationship.

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 is the order of a reaction if doubling the concentration of a reactant doubles the reaction rate?

  • Zero Order
  • First Order
  • Second Order

💡 Hint: Think about the direct correlation between concentration and rate.

Question 2

True or False: The zero-order reaction rate is affected by changes in the concentration of the reactants.

  • True
  • False

💡 Hint: Remember the definition of zero-order reactions?

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Challenge Problems

Push your limits with challenges.

Question 1

Consider the reaction A + B → Products. In experiment one, [A] = 1 M, [B] = 2 M and the rate is 2 M/s. In experiment two, [A] is increased to 2 M while [B] remains constant and the rate is 4 M/s. What is the order of reaction with respect to A?

💡 Hint: Analyze how changes in the concentration of A affected the rate.

Question 2

Given experiments showing [A] = 0.5 M, [B] = 0.5 M results in a rate of 0.1 M/s, and when [B] is doubled to 1 M, the rate increases to 0.4 M/s, determine the order for B.

💡 Hint: Use the rate change in terms of concentration changes.

Challenge and get performance evaluation