Speeds of sound and isentropic compressibilities of (anisole + dichloromethane, or 1,2-dichloroethane, or trichloroethene, or tetrachloroethene, or cyclohexane); atT= 303.15 K

✍ Scribed by Jagan Nath

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 385 KB
• Volume: 28
• Category: Article
• ISSN: 0021-9614
• DOI: 10.1006/jcht.1996.0046

✦ Synopsis

Measurements of speeds of sound, u, have been made in binary mixtures of anisole (C6H5OCH3) with dichloromethane (CH2Cl2), 1,2-dichloroethane (CH2ClCH2Cl), trichloroethene (CHClCCl2), tetrachloroethene (CCl2CCl2), and cyclohexane (c-C6H12) at T = 303.15 K. The densities r of the present mixtures have been calculated at T = 303.15 K using the available data on excess molar volumes V E m , whereas the densities r* of the pure component liquids have been measured at T=303.15 K with a pyknometer, and these results are reported. Values of u have been used to calculate the apparent excess speeds of sound Du and the isentropic compressibilities kS for these mixtures. The excess isentropic compressibilities k E S , have also been calculated from the values of kS. The k E S has been found to be slightly positive for {xC6H5OCH3+(1-x)CH2ClCH2Cl}, and {xC6H5OCH3+ (1-x)CCl2CCl2}, and slightly negative for {xC6H5OCH3+(1-x)CHClCCl2}. The k E S is slightly positive at low mole fractions of C6H5OCH3, and negative at high mole fractions of C6H5OCH3, for {xC6H5OCH3+(1-x)c-C6H12}. For {xC6H5OCH3+(1-x)CH2Cl2}, k E S is very slightly positive at low mole fractions of C6H5OCH3, and it shows a negative trend at high mole fractions of C6H5OCH3. Values of k E S for the various mixtures are discussed in the light of intermolecular interactions between the components.