Half life period of a first order irreversible reaction A → B is ______________________?
Correct answer: C. ln 2/k
- A. k/2
- B. ln k/2
- C. ln 2/k
- D. ln 0.5/k
Explanation
For a first-order irreversible reaction, CA/CA0 = e^-kt. At half-life CA/CA0 = 1/2, so kt = ln 2 and t1/2 = ln 2/k.
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