Surface Properties of Binary Liquid Mixtures of Water and Formic Acid
| المصدر: | المجلة الجامعة |
|---|---|
| الناشر: | جامعة الزاوية - مركز البحوث والدراسات العليا |
| المؤلف الرئيسي: | Saleh, Riyad Ageli (Author) |
| مؤلفين آخرين: | Mohamed, Ebrahim Ali (Co-Author) |
| المجلد/العدد: | مج18, ع1 |
| محكمة: | نعم |
| الدولة: |
ليبيا |
| التاريخ الميلادي: |
2016
|
| الشهر: | يناير |
| الصفحات: | 5 - 17 |
| رقم MD: | 1263220 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | EduSearch, EcoLink, IslamicInfo, AraBase, HumanIndex |
| مواضيع: | |
| رابط المحتوى: |
الناشر لهذه المادة لم يسمح بإتاحتها. |
| LEADER | 02269nam a2200265 4500 | ||
|---|---|---|---|
| 001 | 2015763 | ||
| 041 | |a eng | ||
| 044 | |b ليبيا | ||
| 100 | |9 673261 |a Saleh, Riyad Ageli |e Author | ||
| 245 | |a Surface Properties of Binary Liquid Mixtures of Water and Formic Acid | ||
| 260 | |b جامعة الزاوية - مركز البحوث والدراسات العليا |c 2016 |g يناير | ||
| 300 | |a 5 - 17 | ||
| 336 | |a بحوث ومقالات |b Article | ||
| 520 | |b For a binary liquid mixture, water + formic acid, the formic acid adsorption at the air/liquid interface lowers the surface tension (γ) of the solution. Based on experimental data reported in the literature, the interface thermodynamics (surface excess) of the system (water/formic acid) were studied, where the Gibbs convention for the surface was employed. In Gibbs convention the two phases α and β are separated by an ideal interface σ which is infinitely thin. The surface thermodynamic quantities of the mixture; the surface entropy, the surface enthalpy, the surface excess concentration ( Γ max) of formic acid, and the area per molecule (in A o2) at interface have been calculated. The surface tensions data over the entire concentration range at temperatures 20 to 50˚C was considered. The surface tension decreased with increasing temperature for any given mole fraction of acid. Data confirms the adsorption of formic acid molecules at the interface and increasing the mixture temperature lead to increase the area per molecule. At 20 ˚C the area per molecule= 32.94 AO2 and 50˚C the area per molecule= 36.33 AO2. | ||
| 653 | |a حمض الفورميك |a المركبات الكيميائية |a الديناميكا الحرارية | ||
| 700 | |9 673264 |a Mohamed, Ebrahim Ali |e Co-Author | ||
| 773 | |4 العلوم الإنسانية ، متعددة التخصصات |4 العلوم الاجتماعية ، متعددة التخصصات |6 Humanities, Multidisciplinary |6 Social Sciences, Interdisciplinary |c 006 |e University Bulletin |l 001 |m مج18, ع1 |o 0928 |s المجلة الجامعة |v 018 | ||
| 856 | |u 0928-018-001-006.pdf | ||
| 930 | |d n |p y |q n | ||
| 995 | |a EduSearch | ||
| 995 | |a EcoLink | ||
| 995 | |a IslamicInfo | ||
| 995 | |a AraBase | ||
| 995 | |a HumanIndex | ||
| 999 | |c 1263220 |d 1263220 | ||
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