Thermodynamic function of valineacid in n-n dimethyl formamide mixtures from conductance measurement
Other Title(s)
الدوال الحرارية لحامض الفاليين في مزيج الداي مثيل فورمامايد من قياسات التوصيلية
Author
Source
Issue
Vol. 10, Issue 4 (31 Dec. 2013), pp.1172-1181, 10 p.
Publisher
University of Baghdad College of Science for Women
Publication Date
2013-12-31
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Topics
Abstract AR
تم تعيين بعض الخواص الفيزيائية مثل الانثالبي (ΔH)، و الانتروبي (ΔS)، و الطاقة الحرة (ΔG)، و السعة الحرة (Δcpo)، و ثابت التفكك للحامض الفايلين pka في مذيب من داء مثيافورمامايد في مدى من درجات الحرارة K (318.15-293.15) عن طريق قياسات التوصيلية مباشرة و عند كسر مولي للمذيب هو 0.141 من داي مثيل فورمامايد.
و من خلال النتائج لوحظ إن قيم ثابت التفكك لحامض الفاليين تزداد بزيادة درجة الحرارة.
Abstract EN
Some physical properties enthalpy (ΔH), entropy (Δs), free energy (ΔG),capacities(Δcp) and Pka values) for valine in dimethyl foramideover the temperature range 293.15-318.15K, were determined by direct conductance measurements.
The acid dissociation at six temperature was examined at solvent composition x2) involving 0.141 of dimethyl foramide.
As results, calculated values have been used to determine the dissociation constant and the associated thermodynamic function for the valine in the solvent mixture over temperatures in the range 293.15-318.15 k.
The Pka1, and Pka2 were increased with increasing temperature.
American Psychological Association (APA)
Sarhan, Sana Tariq. 2013. Thermodynamic function of valineacid in n-n dimethyl formamide mixtures from conductance measurement. Baghdad Science Journal،Vol. 10, no. 4, pp.1172-1181.
https://search.emarefa.net/detail/BIM-346589
Modern Language Association (MLA)
Sarhan, Sana Tariq. Thermodynamic function of valineacid in n-n dimethyl formamide mixtures from conductance measurement. Baghdad Science Journal Vol. 10, no. 4 (2013), pp.1172-1181.
https://search.emarefa.net/detail/BIM-346589
American Medical Association (AMA)
Sarhan, Sana Tariq. Thermodynamic function of valineacid in n-n dimethyl formamide mixtures from conductance measurement. Baghdad Science Journal. 2013. Vol. 10, no. 4, pp.1172-1181.
https://search.emarefa.net/detail/BIM-346589
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1180-1181
Record ID
BIM-346589