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In 0 order reactions does half life halve when conc. halves?

In 0 order reactions does half life halve when concentration halves?
In 2nd order reactions does half life double when conc. halves?
Second order = t1/2 is not constant... it increases.
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chhhhelsie
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Original post by ihaspotato
Second order = t1/2 is not constant... it increases.


Yep i know that much..so there is no fixed relationship between t1/2 and concentration in 2nd order? Just that t1/2 increases as concentration decreases?
Original post by chhhhelsie
Yep i know that much..so there is no fixed relationship between t1/2 and concentration in 2nd order? Just that t1/2 increases as concentration decreases?


Yes.
Original post by chhhhelsie
Yep i know that much..so there is no fixed relationship between t1/2 and concentration in 2nd order? Just that t1/2 increases as concentration decreases?


Original post by ihaspotato
Yes.


That's not strictly true, there is a relationship but assuming you're A-level, you don't need to know it but just incase you're interested :redface: :
half life.PNG
If you do maths A level, you can actually work out all of these easily by integration :smile:
(edited 7 years ago)

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