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The Surface Tension of Liquid Gases for Low-boiling Point
Wang Rong1, Sheng Yong1, Yang Chuanlu1, Zhu Zhenghe1, Tan Mingliang1, Jiang Gang1, Wang Mingda2, Zheng Yongming2, Tang Yongjian2, Zheng Zhijian2, Zhao Yongkuan2
1.Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065;2.Southwest Institute of Nuclear Physics and Chemistry,Chengdu 610003
Abstract:
The surface tension of liquid nitrogen at 77 K is measured to be 9.053 dyn/cm in terms of the double capillary method,which may be reasonable in comparison with the single capillary method.The nonlinear equation *=*0(1-T/TC)n has been used to describe the relation between the surface tension with the temperature for liquefied N2,O2,Ar,Xe,H2,Ne,He,F2,D2 and Kr.The parameters *0 and n of the liquefied gases above are fitted by the linear regression method with higher accuracy than that in the literatures.
Key words:  Surface tension,Low-boiling point gas,Double capillary method
FundProject:国防科技重点实验室基金项目98JS77.7.JW190
液态低沸点气体的表面张力
汪蓉1, 盛勇1, 杨传路1, 朱正和1, 谭明亮1, 蒋刚1, 王明达2, 郑永铭2, 唐永建2, 郑志坚2, 赵永宽2
1.四川大学原子分子物理研究所成都 610065;2.西南核物理与化学研究所成都 610003
摘要:
利用双毛细管法测定了液氮沸点温度下液氮的表面张力。用非线性方程γ=γ0(1-T/TC)n描述了液态N2、O2、Ar、Xe、H2、Ne、He、F2和Kr的表面张力与温度的关系,并采用一元线性回归的方法拟合了上述各流体的参数γ0和n,准确度高于文献值,说明方程能正确表达表面张力与温度的关系。这些数据有利于对上述低沸点气体进行准确的热力学计算。
关键词:  表面张力  低沸点气体  双毛细管法
DOI:10.1088/1674-0068/13/3/378-384
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