Change: , it is not sufficient that it cannot be directly reversed. This is the case with many mechanical processes which are not irreversible. The full requirement is, that it be impossible, even with the assistance of all agents in nature, to restore everywhere the exact initial state when   View changes from previous version. (Word count: 735)

Change: cycle,cycle, in which following a series of heat interactions whereby the working body yields work output and then returns to its original state, there occurs an quantifiable energy loss due to intermolecular work interactions of the atoms and molecules of the working body upon each other. [1]   View changes from previous version. (Word count: 560)

Change: NC: LuLu.(b) Thims, Libb. (2007). Human Chemistry (Volume Two), (preview), (Index: irreversibility). Morrisville, NC: LuLu. Further reading ● Teilhard, Pierre.Pierre. (1923). “The Law of Irreversibility in Evolution” (not: “On the Law …”) in The Vision of the Past. (Oeuvres, III). March 21.   View changes from previous version. (Word count: 560)

Change:  NC: LuLu.(b) Thims, Libb. (2007). Human Chemistry (Volume Two), (preview), (Index: irreversibility). Morrisville, NC: LuLu. Further reading ● Teilhard, Pierre. (1923). “The Law of Irreversibility in Evolution” (not: “On the Law …”) in The Vision of the Past. (Oeuvres, III). March 21.   View changes from previous version. (Word count: 560)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 535)

Change: German physicist Rudolf Clausius in 1854 to describe a cyclic thermodynamic process, particularly the Carnot cycle, in which following a series of heat interactions whereby the working body yields work output and then returns to its original state, there occurs   View changes from previous version. (Word count: 533)

Change: Created by Sadi-Carnot Jan 12 2008, 1:41 PM EST for: no reason given