Study of molecular interactions in the mixtures of some primary alcohols with equimolar mixture of 1-propanol and alkylbenzoates at T=303.15K

Excess Thermodynamic and Acoustic Properties for Equimolar Mixture of Methyl Benzoate and Alkanols With Benzene at 303.15 K

“…The nature of the intermolecular interactions in liquid mixtures can be explained by the variation of excess molar volume (V E ), with respect to mole fraction, x1, as shown in Figure 2 at T=303.15 K. The expansion in molar volume can be attributed to the presence of weak forces of attraction 18 between the molecules. Similar results were reported by Garcia et al 19 . The negative values of V E indicate that there is more compact packing of molecules which implies that the molecular interactions are strong whereas the positive values indicate a loose packing of molecules in the mixture compared to those in the pure component.…”

“…At T =303.15K the excess values of Enthalpy (H E ) are positive as shown in figure 5 with respect to the mole fraction, x1. With the increase in alkanol chain length, the positive values of H E also increase, this is a clear indication that there are dispersion forces between molecules in this liquid mixtures 23 . It also suggests the existence of weak dipole-dipole interactions in these systems.…”

Acoustic Properties of Binary Liquid Mixtures Containing N-Methyl Formamide With Anilines at Different Temperatures

“…The expansion in molar volume can be attributed to the presence of weak forces of attraction between the molecules. 18 Similar results were reported by Garcia et al 19 The negative values of V E indicate that there is more compact packing of molecules which implies that the molecular interactions are strong whereas the positive values indicate a loose packing of molecules in the mixture compared to those in the pure component. Similar results were observed by earlier workers.…”

“…The positive values of H E also increase, this is a clear indication that there are dispersion forces between molecules in these liquid mixtures. [23][24][25] It also suggests the existence of weak dipole-dipole interactions in these systems. Also, the excess values correlate with one another and also supports the inferences drawn for these liquid mixtures.…”

Ultrasonic, Density and Viscosity Studies in Binary Mixtures of Propylene Glycol and 1-Pentanol at Room Temperature

“…Speed of sound investigations along with the volumetric and viscometric studies of liquids and liquid mixtures are of considerable importance and they play a significant role in understanding the intermolecular interactions occurring among the component molecules besides finding extensive applications in several industrial and technological processes [1,2]. Several researchers [3][4][5][6][7][8] have measured the density, viscosity, and speed of sound for a wide range of binary mixtures containing alcohols as one of the components, and these properties were interpreted in terms of specific or nonspecific interactions. Alcohols are strongly associated in solution because of dipole-dipole interaction and hydrogen bonding.…”