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physicsgg

The Enigma of Entropy

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entropyDeepak Dhar
One of the most mysterious of laws of nature is the second law of thermodynamics.
There are several equivalent formulations of One of the most mysterious of laws of nature is the second law of thermodynamics. There are several equivalent formulations of this law. For our present discussion, it is enough to take the Clausius formulation that says that for an isolated system evolving in time, the entropy cannot decrease.
Many of you have encountered this in your B.Sc. textbooks already. Let me explain my reasons for calling it enigmatic. I do not have any answers. I just want to say why I think that it is an interesting question.
Let me explain myself using a parable. A foreign scientist is visiting a laboratory in China.
In the day time, he discusses his work with his hosts, and in the evenings, he has to find some place to eat. Unfortunately, he knows no Chinese….
Read more: http://arxiv.org/pdf/1301.1892v1.pdf

Written by physicsgg

January 13, 2013 at 12:13 pm

Posted in Thermodynamics

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