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The Surface Tension of Liquid Gases for Low-boiling Point
Wang Rong,Sheng Yong,Yang Chuanlu,Zhu Zhenghe,Tan Mingliang,Jiang Gang,Wang Mingda,Zheng Yongming,Tang Yongjian,Zheng Zhijian,Zhao Yongkuan
Author NameAffiliation
Wang Rong Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 
Sheng Yong Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 
Yang Chuanlu Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 
Zhu Zhenghe Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 
Tan Mingliang Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 
Jiang Gang Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 
Wang Mingda Southwest Institute of Nuclear Physics and Chemistry,Chengdu 610003 
Zheng Yongming Southwest Institute of Nuclear Physics and Chemistry,Chengdu 610003 
Tang Yongjian Southwest Institute of Nuclear Physics and Chemistry,Chengdu 610003 
Zheng Zhijian Southwest Institute of Nuclear Physics and Chemistry,Chengdu 610003 
Zhao Yongkuan 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,盛勇,杨传路,朱正和,谭明亮,蒋刚,王明达,郑永铭,唐永建,郑志坚,赵永宽
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
分类号: