Journal of Modern Physics

Volume 6, Issue 15 (December 2015)

ISSN Print: 2153-1196   ISSN Online: 2153-120X

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Randomization of Energy and Momentum in Statistical Mechanics

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DOI: 10.4236/jmp.2015.615223    5,433 Downloads   5,845 Views  
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ABSTRACT

Particle-particle collisions in materials give rise to a particle distribution in energy and momentum in such a way that a most probable distribution is realized. I will show that an evaporating liquid generates a molecular imbalance in the equilibrium energy distribution. The molecular collisions by their inherent nature are able to repair the imbalance and in so doing it is shown that the liquids cool down. Similarly an external electric field creates substantial imbalance in the momentum distribution for the electrons in ionic semiconductors. Electron-electron collisions are able to restore the imbalance and as a consequence, similar to the evaporating liquid, the electron gas loses thermal energy and cools down.

Cite this paper

Paranjape, V. (2015) Randomization of Energy and Momentum in Statistical Mechanics. Journal of Modern Physics, 6, 2198-2201. doi: 10.4236/jmp.2015.615223.

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