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Help with A2 Chemistry Question!!

https://imgur.com/a/U9P8YZq

If the pressure is halved, won't the half life be doubled? Can someone explain?
Reply 1
Half life are consistent for a first order reaction. Temperature is the only factor which will affect the rate constant, k.
Original post by Meduser
Half life are consistent for a first order reaction. Temperature is the only factor which will affect the rate constant, k.

I see, thanks!
Reply 3
No problem, because of the consistency of half lives with first order reactions, you can use the equation k=ln2/half life (if you wanted to know!) as a shortcut for k rather than using the usual rate equation!
Original post by Meduser
No problem, because of the consistency of half lives with first order reactions, you can use the equation k=ln2/half life (if you wanted to know!) as a shortcut for k rather than using the usual rate equation!


I'll keep that in mind. Thanks for your help!
Reply 5
No problem :smile:

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