## Van't Hoff equation

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

Gabriella Bates 2L
Posts: 113
Joined: Thu Jul 11, 2019 12:15 am

### Van't Hoff equation

Is the Van't Hoff Equation on the equation sheet, or do we need to derive it? I didn't see it on the sheet but I may just be blind

Fiona Latifi 1A
Posts: 102
Joined: Sat Sep 14, 2019 12:16 am

### Re: Van't Hoff equation

The learning objectives ask you to be able to derive this equation.

Maya Pakulski 1D
Posts: 105
Joined: Thu Jul 11, 2019 12:17 am

### Re: Van't Hoff equation

What is this equation used for? When would we know to use it or to derive it?

Verity Lai 2K
Posts: 100
Joined: Sat Aug 24, 2019 12:18 am

### Re: Van't Hoff equation

The equation relates K with temperature and it isn’t on the equation sheet. However, the equations you need to derive it are on the equation sheet.

Veronica_Lubera_2A
Posts: 106
Joined: Sat Sep 14, 2019 12:16 am
Been upvoted: 1 time

### Re: Van't Hoff equation

The Van't Hoff equation relates K with temperature. K1 corresponds with T1 and K2 corresponds to T2.

Morgan Carrington 2H
Posts: 54
Joined: Wed Nov 14, 2018 12:22 am

### Re: Van't Hoff equation

Should we be able to derive both versions of the equation or would just know the main derivation be enough?

VioletKo3F
Posts: 103
Joined: Sat Sep 07, 2019 12:18 am

### Re: Van't Hoff equation

I heard from my TA that you need to know how to derive it for the final. She said points could be given based on deriving it.

Celine 1F
Posts: 120
Joined: Fri Aug 02, 2019 12:16 am

### Re: Van't Hoff equation

I think it is important that you know how to derive this equation

Daria MacAuslan 1H
Posts: 50
Joined: Sat Aug 17, 2019 12:16 am

### Re: Van't Hoff equation

Although this isn't on the equation sheet itself, you should know how to derive it. It basically draws a relationship between temperatures and K values that are changing/ different.

Mandeep Garcha 2H
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

### Re: Van't Hoff equation

Since the outline says you should be able to derive the equation, I would recommend it. Also, it isn't given on the constants sheet so it is a good thing to know. During a step-up session one of the UA's said that they had to derive the equation on their final.