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Entropy catastrophe and configurational entropies in supercooled and superheated regimes

Kishore, K and Shobha, HK (1994) Entropy catastrophe and configurational entropies in supercooled and superheated regimes. In: Journal of Chemical Physics, 101 (8). pp. 7037-7047.

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Abstract

Utilizing the well known Kauzmann’s entropy catastrophe paradox, we have developed simple thermodynamic expressions for calculating the Kauzmann’s temperatures in the supercooled liquid $(T_{k1})$ and superheated solid $(T_{k2})$ regions besides obtaining new Kauzmann’s temperature in the superheated liquid $(T_{k3})$ regime. $T_{k3}$ is actually the critical temperature of liquids. The configurational entropies in respective regimes can also be obtained from this thermodynamic treatment that leads us to a new “characteristic entropy constant which also seems to be indicative of configurational entropy. Comparison has also been made for the configurational entropies of supercooled and superheated liquid states. The generality of the above thermodynamic treatment has been successfully tested for alkali metals and $Na_2K$ alloy and polymers.

Item Type: Journal Article
Additional Information: The copyright belongs to American Institute of Physics.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:29
URI: http://eprints.iisc.ernet.in/id/eprint/7759

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