[eagerinsight]

If I was given an equilibrium constant as a function of temperature:

lnK = (58690K/T) - 12.04         In a temp range of (400 to 700 K)

I need to solve for entropy enthalpy and gibbs at 600 K, but where do I start, do I have to integrate (which I have know idea how to do), I figure I need to use the Van't Hoff equation but I don't know how to plug this value into dlnK/dT=dH/RT^2. Any hints how to get started?

[eagerinsight]

I think that 58690K is a temperature in kelvin, what value would I use T in the equation for the equilibrium constant? 600K?

With a value of lnK can I just plug that into -ΔG=RTlnK using 600K as my temperature?

[Yggdrasil]

I haven't worked this out, so this may be a wrong hint, but recall that:

ΔG = ΔH - TΔS

What does this suggest about the temperature-dependent and temperature-independent parts of your expression for lnK?