Journal of Chemical Thermodynamics, Vol.33, No.10, 1399-1404, 2001
The excess molar enthalpies of (N-methyl-2-pyrrolidinone plus mono-, or di-, or trichlorobenzene) at T=298.15 K
Excess molar enthalpies H-m(E) at T = 298.15 K are reported for (N-methyl-2-pyrrolidinone + chlorobenzene, or 1,2-dichlorobenzene, or 1,3-dichlorobenzene, or 1,2,4,-trichlorobenzene). The values of H-m(E) were obtained by using the flow calorimetric method. All the mixtures, over the whole composition range, are formed exothermically. The H-m(E) results are discussed in terms of the NRTL and UNIQUAC models.