16.6 Half-life for First-Order Reactions (Video)
- Page ID
- 342547
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This project was preformed to supply Libretext authors with videos on General Chemistry topics which can be used to enhance their projects. Also, these videos are meant to act as a learning resource for all General Chemistry students.
Video Topics
Half-life is the time required for one-half of a reactant to be consumed. When t = t1/2, [A]t = 1/2[A]0
We can find t1/2 for the 1st order rate expression
ln{[A]t/[A]0} = -kt
ln(1/2) = -kt1/2
-0.693 = -kt1/2
t1/2 = 0.693/k
This means that t1/2 and k are related and t1/2 does not depend on [A]0
Link to Video
Half-life for First-Order Reactions: https://youtu.be/mBMOq0305W0
Attribution
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Prof. Steven Farmer (Sonoma State University)