Explore on the Wave Character of Thermodynamic Entropy and Its Cause

Based on the existing basic theories of thermodynamics, this paper uses the physical thought contained in the entropy balance equation itself to spread it, and compare it with the laws of mass conservation and momentum conservation in mechanics, so as to obtain the wave equation satisfied by entropy. It is found that the thermodynamic entropy fluctuates in the system, and the solution of the wave equation is not a simple harmonic, but determined by the divergence of the term of the viscosity coefficient of the fluid in the system and the time change rate of the intensity of the entropy source, and explains the cause of this wave from the point of view of mechanics! This paper naturally denies the “heat death theory” in history in theory! It has recently been reported that the wave characteristic of entropy has been experimentally verified! At the same time, it is pointed out that there is still a lot of work to be done.