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### Van’t Hoff Equation

Posted: Sun Feb 23, 2020 11:24 pm
What does the equation measure? How does it relate to gibbs free energy?

### Re: Van’t Hoff Equation

Posted: Sun Feb 23, 2020 11:29 pm
The Van't Hoff Equation can be used to calculate the k at a different temperature if change in enthalpy is known and is constant.

### Re: Van’t Hoff Equation

Posted: Sun Feb 23, 2020 11:40 pm
The vant hoff equation can be used to calculate K at different temperatures if stand enthalpy of real lion is known.

### Re: Van’t Hoff Equation

Posted: Tue Feb 25, 2020 5:40 pm
kristi le 2F wrote:The vant hoff equation can be used to calculate K at different temperatures if stand enthalpy of real lion is known.

what is real lion

### Re: Van’t Hoff Equation

Posted: Wed Feb 26, 2020 3:05 pm
805097738 wrote:
kristi le 2F wrote:The vant hoff equation can be used to calculate K at different temperatures if stand enthalpy of real lion is known.

what is real lion

probably "real ion" if I had to guess

### Re: Van’t Hoff Equation

Posted: Wed Feb 26, 2020 3:44 pm
Van't Hoff's equation is:

ln(K2/K1)= (-DeltaH/R)(1/T2 - 1/T1)

So the equation relates enthalpy too but this value should be given in the problem.

### Re: Van’t Hoff Equation

Posted: Mon Mar 09, 2020 3:41 pm
Will this be on the final exam formula sheet?

### Re: Van’t Hoff Equation

Posted: Mon Mar 09, 2020 3:49 pm
Should we also know to derive it?

### Re: Van’t Hoff Equation

Posted: Mon Mar 09, 2020 8:30 pm
it is used to calculate k at different temperatures

### Re: Van’t Hoff Equation

Posted: Tue Mar 10, 2020 6:01 pm
How do you know to use Van't Hoff Equation? Are there certain questions in problems that signal to use it?

### Re: Van’t Hoff Equation

Posted: Tue Mar 10, 2020 6:10 pm
ln(K2/K1)= (-DeltaH/R)(1/T2 - 1/T1)

you can use it to calculate K value at a temperature given the K value at another temperature

### Re: Van’t Hoff Equation

Posted: Tue Mar 10, 2020 6:34 pm
You can calculate K at different temperatures with the Van't Hoff equation. I don't see how it relates to DeltaG though because the only relation between DeltaG and K is with standard DeltaG, and since Van't Hoff equation doesn't calculate K at standard conditions, you can't use that K in the equation: standard DeltaG = -RTlnK