Derivations
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Derivations
Which equations do we have to know how to specifically derive for the final exam, if any?
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- Joined: Fri Sep 29, 2023 11:59 am
Re: Derivations
I think its essential to know that the vant hoff equation relates temperature to the equillibrium constant and you get this by setting the two gibbs free energy equations equal to each other.
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- Posts: 88
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Re: Derivations
Could you please expand on this? How do you set the two equations equal to each other to get the Vant Hoff equation?
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- Posts: 54
- Joined: Sun Oct 01, 2023 8:23 am
Re: Derivations
the derivative of this equation would look like this:
-RTlnK = -H - Ts
lnK= (H/-RT) - (Ts/-RT)
lnK = (H/-RT) + (q/RT)
lnK = (H/-RT) + (H/RT)
lnK = -H/R (1/T - 1/T)
lnK2 - lnK1 = -H/R (1/T2 - 1/T1)
ln(K2/K1) = -H/R (1/T2 - 1/T1) Van't Hoff equation
* H is the change in H and s is the change in s - I just could not add that because of notation on keyboard*
-RTlnK = -H - Ts
lnK= (H/-RT) - (Ts/-RT)
lnK = (H/-RT) + (q/RT)
lnK = (H/-RT) + (H/RT)
lnK = -H/R (1/T - 1/T)
lnK2 - lnK1 = -H/R (1/T2 - 1/T1)
ln(K2/K1) = -H/R (1/T2 - 1/T1) Van't Hoff equation
* H is the change in H and s is the change in s - I just could not add that because of notation on keyboard*
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