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修正的van der Waals模型及其对液相流体的应用
引用本文:窦晓冬,卢伟京,李忠辉,陈求林,傅国旗. 修正的van der Waals模型及其对液相流体的应用[J]. 化工科技, 2002, 10(1): 22-24
作者姓名:窦晓冬  卢伟京  李忠辉  陈求林  傅国旗
作者单位:1. 华东理工大学化学与制药学院,上海,200237
2. 天津大学化工学院,天津,300072
基金项目:“国家自然科学基金资助项目”的部分探索研究内容
摘    要:
用7种代表性物质在广阔温度和压力范围内的液体物性实验值,对两个不同程度上修正的van der Waals模型进行比较和评价。结果表明,从统计力学出发,进一步张Lennard-Jones位能函数对内压项进行修正的van der Waals模型,较仅对已占体积项进行修正的van der Waals模型明显更成。

关 键 词:修正 van-der-Waals模型 液相流体 应用 液体 内压 位能函数 硫体状态方程
文章编号:1008-0511(2002)01-0022-03
修稿时间:2001-10-12

MODIFIED VAN DER WAALS MODELS AND THEIR APPLICATION TO LIQUIDS
DOU Xiao dong ,LU Wei jing ,LI Zhong hui ,CHEN Qiu lin ,FU Guo qi. MODIFIED VAN DER WAALS MODELS AND THEIR APPLICATION TO LIQUIDS[J]. Science & Technology In Chemical Industry, 2002, 10(1): 22-24
Authors:DOU Xiao dong   LU Wei jing   LI Zhong hui   CHEN Qiu lin   FU Guo qi
Affiliation:DOU Xiao dong 1,LU Wei jing 1,LI Zhong hui 1,CHEN Qiu lin 1,FU Guo qi 2
Abstract:
Comparison and evaluation were made on two modified van der Waals models with the experimental values of thermodynamic properties of seven typical liquids over wide temperature and pressure ranges. It was shown that based on the statistical mechanics, the model with the introduction of the Lennard Jones potential function to modify the internal pressure term of the van der Waals equation prevails evidently over that without such modification.
Keywords:Liquid  Internal pressure  Excluded volume  Potential function  Equation of state  Model
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