版权所有：华东理工大学物理化学教研室 9 Because the entropies of ions in water are values relative to the hydrogen ion in water, they may be either positive or negative. 3) Standard entropies of ions in solution A negative entropy means that the ion has a lower partial molar entropy than H+ in water. A positive entropy means that the ion has a higher partial molar entropy than H+ in water 10.1 Thermodynamic functions of formation版权所有：华东理工大学物理化学教研室 9 Because the entropies of ions in water are values relative to the hydrogen ion in water, they may be either positive or negative. 3) Standard entropies of ions in solution A negative entropy means that the ion has a lower partial molar entropy than H+ in water. A positive entropy means that the ion has a higher partial molar entropy than H+ in water 10.1 Thermodynamic functions of formation