Excess enthalpies of mixing tetrahydrofuran and tetrahydropyran with some chloroalkanes at 26.9°C |
| |
Authors: | S C Sharma M Tomar J Singh |
| |
Institution: | (1) Department of Chemistry, Panjab University, 160014 Chandigarh, India |
| |
Abstract: | Excess enthalpies of mixing H
m
E
of tetrahydrofuran and tetrahydropyran with trichloromethane, tetrachloromethane, 1,2-dichloroethane, 1,1,2-trichloroethane and 1,1,2,2-tetrachloroethane have been determined at 26.9°C and are found to be negative over the entire composition range for both sets of the ether mixtures. H
m
E
decreases in the sequence; dichloroethane > tetrachloromethane > trichloroethane > trichloromethane > tetrachloroethane. The results are explained on the basis of strong O...H-C and weak Cl...O specific interactions. Flory's theory has been used to correlate the experimental data with good agreement found between the theoretical and experimental values of H
m
E
. |
| |
Keywords: | Enthalpies of mixing tetrahydrofuran tetrahydropyran chloroalkanes Flory theory |
本文献已被 SpringerLink 等数据库收录! |
|