## Concept behind Van't Hoff Equation

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

Beatrice Petelo 1F
Posts: 62
Joined: Fri Sep 28, 2018 12:17 am

### Concept behind Van't Hoff Equation

Why do we use the Van't Hoff equation? What does it tell us in terms of K and temperature?

Jenna Salas 2H
Posts: 30
Joined: Fri Sep 28, 2018 12:22 am

### Re: Concept behind Van't Hoff Equation

We use the Van't Hoff to calculate K at different temperatures. This is important because K is dependent on temperature, so at different temperatures K has a different value.

Rami_Z_AbuQubo_2K
Posts: 89
Joined: Thu Jun 07, 2018 3:00 am

### Re: Concept behind Van't Hoff Equation

In what situations would we need to calculate different temperatures?

GavinAleshire1L
Posts: 29
Joined: Fri Sep 28, 2018 12:21 am

### Re: Concept behind Van't Hoff Equation

The Van't Hoff Equation relates temperature change and K so you're able to calculate it if T of the system is changed.This temperature change can affect the equilibrium of the system so this can be used to examine that.

deepto_mizan1H
Posts: 65
Joined: Fri Sep 28, 2018 12:16 am

### Re: Concept behind Van't Hoff Equation

It helps to relate the effect of temperature on the equilibrium constant of a reaction. Back when we were looking at Le Chatelier's principle, we noticed that only a change in temperature changed our equilibrium constant as a whole, and this equation can be used to see how a change in temperature directly affects that value.

Cole Elsner 2J
Posts: 88
Joined: Fri Sep 28, 2018 12:25 am

### Re: Concept behind Van't Hoff Equation

This equation helps us determine how a system behaves at equilibrium at a new temperature. The value of K itself changes, so you can really see if products or reactants are favored more or less than they were before!