TitleThe Cluster Physics Chapter for Thermodynamics Education |
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AuthorsDr. Boris Sedunov, Russian New University, Russia |
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AbstractThermodynamics education is known to be a very difficult discipline both for students and teachers. But the Entropy, Chemical potential, Real gas structure, Fugacity, Molecular interaction, Supercritical phenomena chapters may become more comprehensible, if introduced via the neat real gases cluster physics chapter. A pure gas consists of the only one type of basic particles and for this reason possesses a wonderful feature: the molar Gibbs energy G (Chemical potential) is universal for all basic particles . The monomer fraction, as an ideal gas, has a comprehensible expression for its G. The Dm is a perfect argument for thermophysical properties series expansions, named canonical for their correspondence to the Mass action law. The n-th canonical expansion coefficient reflects properties of the n-particle cluster. The precise experimental data may be taken from the NIST Webbook. Unlike virial expansions, the canonical one can expand any thermodynamics function, thus providing the vision of clusters from different points of view. The most informative is the potential energy of a gas, which provides the clusters bond parameters cognition. The temperature dependences of the bond energies show different isomers of the cluster fractions and the directional bonding. The cluster fractions structure at near critical temperatures demonstrates the gas-to-liquid soft structural transition. It is useful for students to develop the skills of the canonical series expansion and the resulting cluster structure analysis. |
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Keywordsthermodynamics education, cluster, chemical potential, series expansion |
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CitationSedunov, B. (2021). The Cluster Physics Chapter for Thermodynamics Education. In M. Shelley, W. Admiraal, & H. Akcay (Eds.), Proceedings of ICEMST 2021--International Conference on Education in Mathematics, Science and Technology (pp. 124-133). Monument, CO, USA: ISTES Organization. Retrieved 12 May 2024 from www.2021.icemst.com/proceedings/50/. |
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