December 3, 2012
Thermodynamics, reversibility, irreversibility, energy, entropy, relativity, Einstein’s mass-energy relation, relativity.
In thermodynamics textbooks, the chapters dealing with the second law are logically located after those dealing with the first law. This implies that, in the presentation of the second law, the information obtained for the first law must be taken into account. In conventional thermodynamics this objective is bypassed rather than achieved because, as explained below, there is an instructive difference between theory and practice in the interpretation of the second law. Although the problem is simple, it needs the consideration of relativity - the Einstein mass-energy relation - to be solved.