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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.48 [2010] >
IJPAP Vol.48(05) [May 2010] >
| Title: | Excess thermodynamic studies of binary liquid mixtures of 2-methyl-2-propanol with ketones |
| Authors: | Rajagopal, K
Chenthilnath, S |
| Keywords: | Ketones
2-methyl-2-propanol
Binary mixtures
Excess functions |
| Issue Date: | May-2010 |
| Publisher: | CSIR |
| Abstract: | Densities (ρ), ultrasonic speeds (u) and
viscosities (η) of binary
mixtures of 2-methyl-2-propanol (2M2P) with acetone (AC), ethyl methyl ketone
(EMK) and acetophenone (AP) including those of pure liquids have been measured
over the entire composition range at temperatures 298.15, 303.15 and 308.15 K,
respectively. From these experimental data, the excess available volume, VaE, excess free volume, VfE,
excess internal pressure, πiE,
excess intermolecular free length, LfE, excess acoustic impedance, ZE and
excess free energy of activation, ΔG*E are calculated. The variations of these properties with
composition and temperature of the binary mixtures have been studied in terms
of molecular interactions between unlike molecules of the mixtures. The
theoretical viscosities have been evaluated using four standard models and the
relative merits are studied in terms of the interaction parameters. |
| Page(s): | 326-333 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.48(05) [May 2010]
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