ABSTRACT

Molar excess volumes VE ijk and speeds of sound, uijk of 2-pyrrolidinone (i) + benzene (j) + toluene or oor p-xylene (k) ternary mixtures have been measured as a function of composition at 308.15 K. The observed speeds of sound data have been utilized to calculate their excess isentropic compressibilities. The observed data have been fitted to Redlich Kister equation to calculate ternary adjustable parameters and standard deviations. Molar excess volumes, VE ijk and excess isentropic compressibilities, ( E S )ijk data for the investigated mixtures have been analyzed in terms of Graph theory and Flory theory. It has been observed that VE ijk and ( E S )ijk values calculated by Graph theory compare well with their corresponding experimental values.

Compounds

#	Formula	Name
1	C4H7NO	2-pyrrolidinone
2	C6H6	benzene
3	C7H8	toluene
4	C8H10	1,4-dimethylbenzene
5	C8H10	1,2-dimethylbenzene

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	2 5 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Linear variable-path acoustic interferometer	27
POMD	2 5 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	28
POMD	2 4 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Linear variable-path acoustic interferometer	27
POMD	2 4 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	28
POMD	2 3 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Linear variable-path acoustic interferometer	26
POMD	2 3 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	30

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Excess molar volumes and excess isentropic compressibilities of 2-pyrrolidinone at 308.15K

Yadav, J. S.[Jaibir S.], Dimple, Sharma, V. K.

ABSTRACT