## Van't Hoff

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

Julia Holsinger_1A
Posts: 50
Joined: Tue Feb 26, 2019 12:16 am

### Van't Hoff

When do you use the Van Hoff equation?

Kishan Shah 2G
Posts: 132
Joined: Thu Jul 11, 2019 12:15 am

### Re: Van't Hoff

Has Dr. Lavelle taught this yet?

Emma Popescu 1L
Posts: 105
Joined: Wed Sep 11, 2019 12:16 am

### Re: Van't Hoff

He hasn't taught this yet. We will learn it after the midterm.

Kristina Rizo 2K
Posts: 105
Joined: Wed Sep 18, 2019 12:19 am

### Re: Van't Hoff

I don’t think this will be on the midterm

Lauren Tanaka 1A
Posts: 109
Joined: Sat Aug 17, 2019 12:18 am

### Re: Van't Hoff

You use this equation when you want to see the change in gibbs free energy relative to when the K value changes in the equation (products and reactants ratio).

Kristina Rizo 2K
Posts: 105
Joined: Wed Sep 18, 2019 12:19 am

### Re: Van't Hoff

Lauren Tanaka 1A wrote:You use this equation when you want to see the change in gibbs free energy relative to when the K value changes in the equation (products and reactants ratio).

So we are comparing the delta G to the equilibrium constant?

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

### Re: Van't Hoff

The Van't Hoff equation can be used to calculate K at a different temperature if delta H is known.