For a second-order reaction with k = 0.50 M⁻¹s⁻¹, [A]₀ = 1.0 M.
What is the first half-life?
- A
0.50 s
- B
1.39 s
- C
5.0 s
- Dcheck_circle
2.0 s
Explanation
Second order: t₁/₂ = 1/(k[A]₀) = 1/(0.50·1.0) = 2.0 s.
Concentration Changes Over Time
AP Chemistry· difficulty 3/5
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