Practice Worked Example - 5.4 | Module 5: Chemical Kinetics | IB Grade 12-Chemistry
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5.4 - Worked Example

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the rate expression for the reaction A + 2B → Products?

💡 Hint: Think about the coefficients of reactants.

Question 2

Easy

If doubling the concentration of a reactant doesn’t change the rate, what is the order with respect to that reactant?

💡 Hint: Consider how the rate behaves when reactant concentration changes.

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 rate expression show?

  • The relationship between temperature and pressure
  • The relationship between rate and reactant concentration
  • The equal reactants required

💡 Hint: Focus on the role of concentration in determining the rate.

Question 2

True or False: The order of reaction can be determined from the stoichiometric coefficients alone.

  • True
  • False

💡 Hint: Think about how order and coefficients relate.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the reaction data for A + 2B → Products: Experiment 1 with Rate = 3.0 x 10^-3 at [A]=0.1 and [B]=0.2. Experiment 2 with Rate = 6.0 x 10^-3 at [A]=0.2 and [B]=0.2. Determine the orders with respect to A and B and write the rate expression.

💡 Hint: Compare rates while keeping one reactant constant.

Question 2

Solve for k using the following data: Rate = 4.0 x 10^-3 at [A]=0.1 and [B]=0.3. Calculate the rate constant for this reaction.

💡 Hint: Ensure you apply the correct units when calculating k.

Challenge and get performance evaluation