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Isochoric Heat Capacity and Cluster Structure of Simple Liquid

  • THERMOPHYSICAL PROPERTIES OF MATERIALS
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Abstract

The formation process of the short-range order and the liquid itself in the critical region is described in terms of a cluster model. The “exploding” formation of dimeric clusters marks the onset. The estimation of cluster size on a vapor–liquid equilibrium curve is proposed. The X-ray diffraction analysis for argon on the saturation line and the observed correlation between the temperature dependences of number of particles in the cluster and the isochoric heat capacity of simple liquids validate the model.

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ACKNOWLEDGMENTS

We would like to sincerely thank Prof. E.B. Postnikov for the discussions of the results, comments, and suggestions. This work was supported by the Russian Foundation for Basic Research, project no. 16-08-01203А.

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Authors and Affiliations

  1. Kursk State University, 305000, Kursk, Russia

    Yu. A. Neruchev & A. K. Radchenko

  2. University of Ulm, 89081, Ulm, Germany

    M. F. Bolotnikov

Authors
  1. Yu. A. Neruchev
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  2. M. F. Bolotnikov
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  3. A. K. Radchenko
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Correspondence to Yu. A. Neruchev.

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Translated by L. Trubitsyna

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Neruchev, Y.A., Bolotnikov, M.F. & Radchenko, A.K. Isochoric Heat Capacity and Cluster Structure of Simple Liquid. High Temp 56, 673–677 (2018). https://doi.org/10.1134/S0018151X1805019X

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