[brasarehot]

I'm given a table with column 1 1st row (Temperature K), column 1 2-5 row C(A) mM, C(B) mM... etc. A + B double arrows P+Q. It has 7 columns of data for Temperature and C. Ex: 273 temp, C(A)=5, C(B)=5. How do you calculate entropy and enthalpy change with just temperature and molar concentration?

[rabolisk]

Are these equilibrium concentrations? If so, there is an equation that relates Gibbs free energy with the equilibrium constant. Then you assume that enthalpy change :delta: H and entropy change  :delta: S are independent of temperature. So you have something like this.

:delta: G₁ = :delta: H - T₁ :delta: S
:delta: G₂ = :delta: H - T₂ :delta: S

You have a system of equations, and you use this to solve for :delta: H and :delta: S