کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10271363 | 460767 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Relation between surface tension and isothermal compressibility: application of statistical mechanical equation of state
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
A statistical mechanical equation of state is used to establish relation between liquid isothermal compressibility κ and surface tension γ with length parameter L, order of surface thickness, in the form of functional κf·γf = CL, where subscript f stands for freezing point. The proportionality constant C depends on the structure and molecular shape of a fluid, and for liquid hydrocarbons varies by a factor of 2-3. Pervious universal relation between second virial coefficient and surface tension at freezing point is used to derive the above relation. The length parameter is a measure of surface thickness and found as the size of (ÏfN)â1/3, where Ïf is the liquid density at freezing point and N is the Avogadro's number. Pure theoretical treatment for numerical calculation of the proportionality constant is in reasonable agreement with literature, for which experimental data on isothermal compressibility and surface tension have been used.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 227, Issue 1, 1 January 2005, Pages 1-7
Journal: Fluid Phase Equilibria - Volume 227, Issue 1, 1 January 2005, Pages 1-7
نویسندگان
M.H. Ghatee, Kh. Shekoohi,