کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
215773 | 1426256 | 2013 | 5 صفحه PDF | دانلود رایگان |
We report new experimental data of heat capacity of two primary amines, namely 1-pentylamine and 1-hexylamine over wide ranges of pressure [0.1–60 (MPa)] and temperature [303.15–403.15 (K)]. The experimental behaviour of the heat capacity versus temperature and pressure is analyzed. An attempt to rationalize this behaviour is performed through a two-state association model (TSAM), which allows expressing the specific effect due to association at molecular level. It appears that the heat capacity trend versus temperature is clearly governed by auto-association between amines molecules. The physical meaningful of the (TSAM) model parameters highlights the capability of this approach to capture the heat capacity behavior of the amines.
► Experimental determination of heat capacity of two primary amines, over wide ranges of pressure and temperature.
► Comprehensive description of the association effect between amines molecules.
► Thermodynamics of complex fluids.
► Statistical thermodynamic approach.
Journal: The Journal of Chemical Thermodynamics - Volume 57, February 2013, Pages 367–371