A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be ____________________ minutes?
Correct answer: D. 16
- A. 4
- B. 8
- C. 12
- D. 16
Explanation
A 75% conversion leaves 25% of the liquid, or one-fourth of the original amount. One-fourth requires two half-lives, so the time is 2 × 8 = 16 minutes.
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