peperonity.net
Welcome, guest. You are not logged in.
Log in or join for free!
 
Forgot login details?

For free!
Get started!

Text page


images
edu.subha.peperonity.net

ENTROPY, DISORDER AND SCALE OF MEASUREMENT

second law of thermodynamics

ALL ABOUT ENTROPY, THE LAWS OF THERMODYNAMICS, AND ORDER FROM DISORDER

The law of entropy, or the second law of thermodynamics, along with the first law of thermodynamics comprise the most fundamental laws of physics. Entropy (the subject of the second law) and energy (the subject of the first law) and their relationship are fundamental to an understanding not just of physics, but to life (biology, evolutionary theory, ecology), cognition (psychology). According to the old view, the second law was viewed as a 'law of disorder'. The major revolution in the last decade is the recognition of the "law of maximum entropy production" or "MEP" and with it an expanded view of thermodynamics showing that the spontaneous production of order from disorder is the expected consequence of basic laws. This site provides basic texts, articles, links, and references that take the reader from the classical views of thermodynamics in simple terms, to today's new and richer understanding.

While in Durgapur for B.E. I was first exposed to the details of a physical quantity named Entropy. Of course, I had already studied the basic definitions of Entropy in Higher Secondary Physics, but like other physical terms, I also had memorised it in terms of formula only. In classical thermodynamics, entropy is defined as a property of a system exchanging an amount of dQ heat when the absolute temperature of the system is T, then the change in Entropy, dS would be equal to (dQ/T). So mathematically we write,

dS = (dQ/T)



This page:




Help/FAQ | Terms | Imprint
Home People Pictures Videos Sites Blogs Chat
Top
.