The half life period of a first order reaction is given by (where, K = rate constant) ?
Correct answer: C. 0.693/K
- A. 1.5 K
- B. 2.5 K
- C. 0.693/K
- D. 6.93 K
Explanation
For a first-order reaction, the half-life is independent of the initial concentration and is given by t₁/₂ = ln 2/k = 0.693/k. Hence the rate constant must be in the denominator.
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