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Which of the following statements is correct about a half-life? a) For a second-order reaction, its half-life is independent of the initial reactant concentration. b) For a first-order reaction, its half-life is dependent on the initial reactant concentration. a) only O b) only Both a) and b) are correct. O Neither a) nor b) is correct

Which of the following statements is correct about a half-life? a) For a second-order reaction, its half-life is independent of the initial reactant concentration. b) For a first-order reaction, its half-life is dependent on the initial reactant concentration. a) only O b) only Both a) and b) are correct. O Neither a) nor b) is correct

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question: Understanding Half-Life in Chemical Reactions** Which of the following statements is correct about a half-life? a) For a second-order reaction, its half-life is *independent* of the initial reactant concentration. b) For a first-order reaction, its half-life is *dependent* on the initial reactant concentration. - ○ a) only - ○ b) only - ○ Both a) and b) are correct. - ○ Neither a) nor b) is correct **Explanation:** First-order reactions have a half-life that is independent of the initial concentration. In contrast, second-order reactions have a half-life that depends on the initial concentration, decreasing as the concentration decreases.
Transcribed Image Text:**Question: Understanding Half-Life in Chemical Reactions** Which of the following statements is correct about a half-life? a) For a second-order reaction, its half-life is *independent* of the initial reactant concentration. b) For a first-order reaction, its half-life is *dependent* on the initial reactant concentration. - ○ a) only - ○ b) only - ○ Both a) and b) are correct. - ○ Neither a) nor b) is correct **Explanation:** First-order reactions have a half-life that is independent of the initial concentration. In contrast, second-order reactions have a half-life that depends on the initial concentration, decreasing as the concentration decreases.
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