In Example 6.2, we developed an expression for gd - gn vs. T for the protein lysozyme (l)
between its native phase, n, and its denatured phase, d, where unfolding occurs. Develop the same expression from the following different approaches:

(a) Use the property relation given by Equation (5.14).

(b) Use the results of Problem 6.25.

Problem 6.25

An alternative criteria for chemical equilibrium between two phases of pure species i can be written:

Apply the thermodynamic web to show that the partial derivative of this function with respect to temperature at constant pressure is given by:

aT = S and ag ( aP = 0 (5.14)