Thermophysical properties of hydrogen along the liquid–vapor coexistence
Thermophysical properties of hydrogen along the liquid–vapor coexistence
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DOI：
10.1016/j.physa.2015.12.079
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发表时间：
2016-05
影响因子：
3.3
通讯作者：
S. M. Osman;N. Sulaiman;M. Khedr
中科院分区：
文献类型：
--
作者：
S. M. Osman;N. Sulaiman;M. Khedr
摘要本文采用一阶微扰理论，对自由能作了适当的一阶量子修正，对流体氢的汽液共存曲线进行了理论计算。在本状态方程中，我们通过将流体处理为硬凸体流体，引入了H2分子的二聚化。计算了H2流体沿着LVC曲线的热物理性质，包括压力-温度关系、密度-温度不对称性、体积膨胀率、熵和焓，并与计算机模拟和经验结果进行了比较。
Abstract We present Theoretical Calculations for the Liquid–Vapor Coexistence (LVC) curve of fluid Hydrogen within the first order perturbation theory with a suitable first order quantum correction to the free energy. In the present equation of state, we incorporate the dimerization of H 2 molecule by treating the fluid as a hard convex body fluid. The thermophysical properties of fluid H 2 along the LVC curve, including the pressure–temperature dependence, density–temperature asymmetry, volume expansivity, entropy and enthalpy, are calculated and compared with computer simulation and empirical results.