论文部分内容阅读
自然界中发生的一切过程,无论是否是可逆过程,都能满足能量转化与守恒定律,这是热力学第一定律揭示的热力学过程中能量量值关系的本质。热力学第二定律揭示的是热力学过程的方向问题,它本质上是一切不可逆过程应遵守的共同特性,沿实际过程的相反方向的过程是不会自动发生的其,定量关系是熵增加原理。熵是引入的一个新态函数,其意义是系统混乱程度的量度,虽然熵和能量有关,但两个定律的内在联系显得并不很密切。既然热力学第定律表明的是过程中能量满足的定量关系,那么,热力学第二定律是否也应当是过程中能量变化方向所满足的关系呢?是。热力学第二定律就是能量均匀分布规律,可以用文字表述如下:
All the processes that occur in nature, whether they are reversible or not, can satisfy the law of energy conversion and conservation, which is the essence of the relationship between the magnitude of energy in the thermodynamics process revealed by the first law of thermodynamics. The second law of thermodynamics reveals the direction of the thermodynamic process. It is essentially the common characteristic that all irreversible processes should obey. The process along the opposite direction of the actual process does not happen automatically. The quantitative relationship is the principle of entropy increase. Entropy is a new state function introduced, whose meaning is a measure of the extent of system chaos. Although entropy is related to energy, the internal relations between the two laws do not seem to be very close. Since the law of thermodynamics shows the quantitative relationship of the energy in the process, is the second law of thermodynamics also the relation of the direction of energy changes in the process? The second law of thermodynamics is the law of uniform energy distribution, which can be expressed in words as follows: