## Van't Hoff Equation

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

Angela Wu-2H
Posts: 50
Joined: Fri Aug 30, 2019 12:16 am

### Van't Hoff Equation

When do we use this equation? I don't recall learning this in lecture.

TarynD_1I
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

### Re: Van't Hoff Equation

I think we use Van't Hoff when trying to calculate how K is affected by a change in temperature

Chris Charton 1B
Posts: 69
Joined: Mon Jun 17, 2019 7:23 am

### Re: Van't Hoff Equation

You use it when you have a given equilibrium constant K at one temperature, and then you need to find the new equilibrium constant K at a new temperature.

Posts: 104
Joined: Fri Aug 09, 2019 12:16 am

### Re: Van't Hoff Equation

The Van't Hoff Equation is used to find the new equilibrium constant of a solution at a different temperature, given the K at a different temperature.

Alexis Robles 2k
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Joined: Wed Sep 18, 2019 12:18 am

### Re: Van't Hoff Equation

Is this equation going to be on test 2?

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

### Re: Van't Hoff Equation

The Van't Hoff equation is used to calculate K (equilibrium constant) at different temperatures if the change in enthalpy is known.

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

### Re: Van't Hoff Equation

TarynD_1I wrote:I think we use Van't Hoff when trying to calculate how K is affected by a change in temperature

yes this is correct as we have a K1 and K2 and a T1 and T2

anjali41
Posts: 109
Joined: Fri Aug 09, 2019 12:15 am

### Re: Van't Hoff Equation

Yes, I believe that the Van't Hoff equation could be on Test 2.