## Van't Hoff

$\ln K = -\frac{\Delta H^{\circ}}{RT} + \frac{\Delta S^{\circ}}{R}$

Jared Smith 1E
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### Van't Hoff

Can someone give me a situation where you would use the ln(k2/k1) version of this equation? Thanks!

Chem_Mod
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### Re: Van't Hoff

As I stated in class when calculating K2 at T2 when you know K1 at T1.

Sammy Thatipelli 1B
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### Re: Van't Hoff

From the notes that I took, you can use Van't Hoff when you have two different temperatures and you are trying to calculate the K, accounting for the face that you need to subtract temperatures to find the deltaT.

Irma Ramos 2I
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### Re: Van't Hoff

Would the above situations be the only ones where this equation is used?

Clarissa Molina 1D
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### Re: Van't Hoff

Is this equation only used when K1 at T1 is known?

KayleeMcCord1F
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### Re: Van't Hoff

Do we have to know the van't Hoff equation for the final?

Cassandra Mullen 1E
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### Re: Van't Hoff

KayleeMcCord1F wrote:Do we have to know the van't Hoff equation for the final?

I think you should be able to derive the Van't Hoff equation with what's given on the equations sheet.

Akash_Kapoor_1L
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### Re: Van't Hoff

I actually learned to calculate this and turned out it wasn’t on the final. But it’s good to know the concepts.

Justin Lai 1C
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### Re: Van't Hoff

I think that this equation can be used for different temperatures and also different Ea as well.

Nate O 2L
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Joined: Fri Sep 29, 2017 7:06 am

### Re: Van't Hoff

Yeah I agree with the statement above.