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Entropy 2006, 8(3), 175-181; doi:10.3390/e8030175

Generalized Ideal Gas Equations for Structureful Universe

Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan.
* Author to whom correspondence should be addressed.
Received: 19 May 2006 / Accepted: 4 September 2006 / Published: 4 September 2006
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We have derived generalized ideal gas equations for a structureful universe consistingof all forms of matters. We have assumed a universe that contains superclusters. Superclusters arethen made of clusters. Each cluster can be further divided into smaller ones and so on. We havederived an expression for the entropy of such a universe. Our model is rather independent of thegeometry of the intermediate clusters. Our calculations are valid for a non-interacting universewithin non-relativistic limits. We suggest that structure formation can reduce the expansion rateof the universe.
Keywords: set theory; cluster; temperature; pressure; entropy; thermal energy; cosmology. set theory; cluster; temperature; pressure; entropy; thermal energy; cosmology.
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Afridi, S.N.; Khan, K. Generalized Ideal Gas Equations for Structureful Universe. Entropy 2006, 8, 175-181.

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