Practice Zero-order Reactions (4.3.1) - Unit 6: Chemical Kinetics - IB 11 Chemistry

Practice: Zero-Order Reactions

Lesson 4.3.1Unit 6: Chemical Kinetics

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8 questions

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6 sample questions

Question 1.
What is a zero-order reaction?
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Think about how the rate behaves compared to reactant concentration.
Question 2.
What is the rate law for a zero-order reaction?
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Consider how the rate changes with concentration.
3Question 3.
Which of the following best defines a zero-order reaction?
- A reaction where the rate increases with concentration
- A reaction where the rate is constant regardless of concentration
- A reaction where the concentration of reactants decreases exponentially
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Consider how rate and concentration interact.
4Question 4.
True or False: The half-life of a zero-order reaction depends on the initial concentration of the reactant.
- True
- False
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Think about how half-lives relate to reaction orders.
Question 5.
A zero-order reaction starts with a concentration of 4.0 M and has a rate constant of 0.2 M/s. How long will it take to decrease to 2.0 M?
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Use the integrated form to find the time.
Question 6.
If a zero-order reaction's rate constant is 1.0 M/s, what is the effect on the half-life if the initial concentration is doubled?
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Think about how the initial concentration affects the half-life formula.

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