Mechanics / Electrodynamics
December 11, 2012
Thermodynamics, reversibility, irreversibility, energy, entropy, relativity, Einstein’s relation
In the discussion presented below, the basic equations used to describe heat exchanges are similar to those used to describe work exchanges. It is shown that the information they lead to is equivalent to the one given by the conventional approach. The only - but fundamental - difference is that the concept of increase in entropy appears as the symptom of an increase in energy, implying a link between thermodynamics and relativity. With the help of a numerical example, the difference between the classical theory and the new suggested interpretation is analyzed in detail.