Chemistry · Chemical Kinetics
A first-order reaction has a rate constant k = 1.5 × 10-2 s-1. Consider the following statements: A. The half-life of the reaction is approximately 46.2 seconds. B. The time taken for 75% completion is approximately 2 × t1/2. C. The time taken for 87.5% completion is approximately 3 × t1/2. D. The unit of the rate constant is the same as the rate of reaction. E. The integrated rate law is given by ln([A]0 / [A]) = kt. How many of the above statements are correct?
- 12
- 23
- 34✓
- 45
Correct answer
4
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