Flow-microcalorimetric measurements of excess molar enthalpies H E m at the temperatures 298.15 K and 308.15 K are reported for 4x(CH3)3CCH2CH(CH3)2, or CH3(CH2)4CH.CH2, or CH3(CH2)3CH.CH2, or C6H5CH3 + (1 -x)CH3OC(CH3)35 and 4xCH3(CH2)4CH.CH2, or CH3(CH2)3CH.CH2, or C6H5CH3 + (1 -x)CH3OC(CH3)2C2H55
Excess molar enthalpies of (hexane, or octane, or decane, or dodecane, or hexadecane, or cyclohexane, or 1-heptene, or 1-heptyne, or 2,2,4-trimethylpentane  +  ethyl 1,1-dimethylpropyl ether) at the temperature 298.15 K
✍ Scribed by T.M. Letcher; U. Domańska
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 135 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0021-9614
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✦ Synopsis
Flow-microcalorimetric measurements of excess molar enthalpies H E m at the temperature 298.15 K are reported for [x{CH 3 (CH 2 ) 4 CH 3 , or CH 3 (CH 2 ) 6 CH 3 , or CH 3 (CH 2 ) 8 CH 3 , or CH 3 (CH 2 ) 10 CH 3 , or CH 3 (CH 2 ) 14 CH 3 , or c-C 6 C 12 , or CH 3 (CH 2 ) 4 CH CH 2 , or CH 3 (CH 2 ) 4 C CH, or
in order to investigate the interaction between a straight chain hydrocarbon and ethyl 1,1-dimethylpropyl ether. Over the whole composition range all the mixtures, with the exception of (1-heptene or 1-heptyne + ether), are endothermic. The experimental values are correlated by means of UNIQUAC and NRTL models.
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Excess molar volumes V E m and excess molar enthalpies H E m were measured as a function of mole fraction at T = 303.15 K and atmospheric pressure for each of the mixtures {1-heptyne, or 1-octyne + tetramethylene sulfone (sulfolane)}. Excess molar volumes were also measured for mixtures of (1-hexyne
Measurements of excess molar enthalpies at the temperature 298.15 K in a flow microcalorimeter are reported for the ternary mixtures {x Smooth representations of the results are described and used to construct constant-enthalpy contours on Roozeboom diagrams. It is shown that useful estimates of th
The results were compared with the values of H E m for the related mixtures, and the possible hydrogen bonding between the alkyne and the ether noted. Various theories of liquid mixtures were fitted with the results. The H E m results were discussed in terms of the NRTL and UNIQUAC models, and were
Excess molar enthalpies, measured at the temperature 298.15 K in a flow microcalorimeter, are reported for the ternary mixtures Smooth representations of the results are described and used to construct constant-enthalpy contours on Roozeboom diagrams. It is shown that useful estimates of the enthal
Measurements of excess molar enthalpies at the temperature 298.15 K in a flow microcalorimeter, are reported for the ternary mixtures where ν = 5 and 6. Smooth representations of the results are described and used to construct constant-enthalpy contours on Roozeboom diagrams. It is shown that usefu