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Van't Hoff Equation

Posted: Sun Feb 23, 2020 11:13 pm
by Jasleen Kahlon
The Van't Hoff Equation shows temperature dependence of K, but I'm still a little confused on what that means, and does the equation in any way connect to ∆H, ∆S, and ∆G?

Re: Van't Hoff Equation

Posted: Sun Feb 23, 2020 11:17 pm
by Eugene Chung 3F
Jasleen Kahlon wrote:The Van't Hoff Equation shows temperature dependence of K, but I'm still a little confused on what that means, and does the equation in any way connect to ∆H, ∆S, and ∆G?


deltaG = -RtlnK

and since deltaG = deltaH -T*deltaS, we can rearrange it to solve for deltaH and deltaS.

Re: Van't Hoff Equation

Posted: Sun Feb 23, 2020 11:18 pm
by Jacey Yang 1F
The Van't hoff equation relates the change in the equilibrium constant K of a chemical reaction to the change in temperature. It is derived from combining the equations deltaG = deltaH - TdeltaS and delta G = -RTlnK.

Re: Van't Hoff Equation

Posted: Mon Feb 24, 2020 8:10 am
by christabellej 1F
The Van't Hoff Equation is used to calculate K at different temperatures. In finding the K, you would assume that the delta S and delta H are not significant.