5.3.1.4 - Deduce the order for each reactant

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does it mean if a reaction is zero order with respect to a reactant?

πŸ’‘ Hint: Think of how the concentration affects the rate.

Question 2

Easy

If doubling the concentration of a reactant doubles the rate, what order is it?

πŸ’‘ Hint: Consider how directly proportional relationships work.

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Interactive Quizzes

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

Question 1

If the reaction rate remains unchanged when a reactant concentration is doubled, what is the order of the reaction with respect to that reactant?

  • First Order
  • Zero Order
  • Second Order

πŸ’‘ Hint: Consider how concentration influences rate in different orders.

Question 2

True or False: A reaction that is second order with respect to reactant A will increase its rate by a factor of four if its concentration is doubled.

  • True
  • False

πŸ’‘ Hint: Reflect on how second-order reactions operate.

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Challenge Problems

Push your limits with challenges.

Question 1

You conduct an experiment and find that when you double the concentration of reactant X, the reaction rate becomes four times faster. If you then double the concentration of a second reactant Y while keeping X constant, and the rate increases by a factor of eight, what are the orders of the reaction with respect to X and Y?

πŸ’‘ Hint: Analyze how the rate changes according to each reaction when you manipulate their concentrations.

Question 2

In a chemical reaction with multiple steps, you find that the rate law is Rate = k [A]^m [B]^n, but you only have data for [A]. If doubling [A] leads to quadrupling the reaction rate, while all other conditions remain constant, determine the value of m.

πŸ’‘ Hint: Recall the relationship between concentration changes and how they affect the rate of reaction.

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