Thermodynamic function of valineacid in n-n dimethyl formamide mixtures from conductance measurement
Abstract
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.
Article Type
Article
How to Cite this Article
Sarhan, Sanaa T.
(2013)
"Thermodynamic function of valineacid in n-n dimethyl formamide mixtures from conductance measurement,"
Baghdad Science Journal: Vol. 10:
Iss.
4, Article 13.
DOI: https://doi.org/10.21123/bsj.2013.10.4.1172-1181
