## Van't Hoff Equation

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

KarenaKaing_1D
Posts: 37
Joined: Fri Sep 25, 2015 3:00 am

### Van't Hoff Equation

In Lavelle's course reader when he derives the Van't Hoff equation that can be used to calculate K at different temperatures, he subtracts ln K2 from ln K1. Shouldn't the final result be ln K1 divided by ln K2 instead of ln K2 divided by ln K1?

Cindy Chen_2I
Posts: 43
Joined: Wed Nov 18, 2015 3:00 am

### Re: Van't Hoff Equation

I think he actually subtracted ln K1 from ln K2 on p.44 of the course reader

ln K2 - ln K1 = ln (K2/K1)
= (-delta H)/R* (1/T2-1/T1)