Figure 59. Changes in D G as a function of the sign and magnitude of D S for an exothermic reaction (D H < 0, point A) or an endothermic reaction (D H > 0, point B). Point A corresponds to disordering of the surroundings while point B corresponds to ordering of the surroundings. When D S is negative, the system is ordered and when D S is positive, the system is disordered. The temperature dependence of the formal potential of myoglobin uniquely follows line two and then abruptly follows line three at 37C.

Figure 59 - Changes in D G as a function of the sign and magnitude of D S for an exothermic reaction (D H < 0, point A) or an endothermic reaction (D H > 0, point B). Point A corresponds to disordering of the surroundings while point B corresponds to ordering of the surroundings. When D S is negative, the system is ordered and when D S is positive, the system is disordered. The temperature dependence of the formal potential of myoglobin uniquely follows line two and then abruptly follows line three at 37C