1201.4284 (Tang Suye)

Internal Heat Energy, Entropy and The Second Law: A New Approach to
Theoretical Thermodynamics    [PDF]

Tang Suye

In classical thermodynamics, the absence of an explicit expression of the state function for representing the internal heat energy of the system result in such a issue: Clausius' definition must be restricted to reversible processes. In this paper, we prove that the internal heat energy of the system is a state function, and introduce this state function into the definition of entropy. A new conclusion can be given by a new approach that the additional restriction to reversible processes is not an essential requirement for the definition of entropy.

View original: http://arxiv.org/abs/1201.4284