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Excess molar volumes and excess molar enthalpies of ternary mixtures containing nitrobenzene atT=308.15 K

โœ Scribed by K.C. Kalra; V.K. Sharma; Ashma Katoch

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
207 KB
Volume
30
Category
Article
ISSN
0021-9614

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โœฆ Synopsis

Excess molar volumnes V and excess molar enthalpies H of nitrobenzene i q benzene i jk i jk ลฝ . ลฝ .4 j q toluene, or qo-xylene, or qp-xylene k ternary mixtures have been measured as a function of composition dilatometrically and calorimetrically at the temperature 308.15 K. The data obtained have been analysed in terms of the Flory theory. It has been observed that the H E values predicted by this theory compare reasonably well with the corresponding i jk experimental values. The V E values are of the same order and sign, however, the agreement i jk with the predictions is not satisfactory for these ternary mixtures. แฎŠ 1998 Academic Press Limited KEYWORDS: excess molar volumes; excess molar enthalpies; isothermal compressibility; coefficient of volume expansion 2. Experimental ลฝ . Nitrobenzene AR grade was purified by shaking with dilute aqueous H SO . The 2 4

resulting solution was then shaken with a 10 per cent Na CO solution, dried over

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