[Rutherford]

I found this equation on a past US NChO:
http://search.mywebsearch.com/mywebsearch/GGmain.jhtml?id=ZKman000&ptnrS=ZKman000&ptb=TmgGnYNDnHrvPJSnM1Wepw&ind=2011082509&n=77deaf0d&psa=&st=kwd&searchfor=%3Cimg+src%3D%22http%3A%2F%2Flatex.codecogs.com%2Fgif.latex%3Fln%28\frac{k_{2}}{k_{1}}%29%3D\frac{\Delta+H}{R}%28\frac{1}{T_{1}}-\frac{1}{T_{2}}%29%22+title%3D%22ln%28\frac{k_{2}}{k_{1}}%29%3D\frac{\Delta+H}{R}%28\frac{1}{T_{1}}-\frac{1}{T_{2}}%29%22+%2F%3E
I am curious, from what original equation is it derived?

[Jorriss]

Take the equation deltaH-TdeltaS=-RTlnk and differentiate with respect to temperature.

[Rutherford]

I don't understand what you said. Differentiate?

[fledarmus]

Differentiate ≡ take the derivative

[Rutherford]

  Is this something about integrals?

[fledarmus]

In the sense that it requires calculus, yes. You can consider a derivative to be the inverse operation of an integral.

[Rutherford]

Ok, thanks.