According to the energy postulate, the general form of the chemical potential is educed separately from thermodynamics and non-equilibrium thermodynamics, and two examples are expatiated by the general form of the chemical potential.

• 摘要以能量公设为基础，分别从热力学及非平衡热力学的层面推广了化学势的定义，并对两个实例展开讨论分析。