Dortmund Data Bank

Excess Heat Capacity Data

The experimental data shown in these pages are freely available and have been published already in the DDB Explorer Edition. The data represent a small sub list of all available data in the Dortmund Data Bank. For more data or any further information please search the DDB or contact DDBST.


Excess Heat Capacity Data Set 754

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 288.00 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
1.4860 0.09940
2.9338 0.19600
4.7780 0.30090
6.5815 0.40020
8.7078 0.50150
10.0985 0.60080
10.8818 0.70040
10.4551 0.80030
7.5819 0.90020

(x - liquid mole fraction)

Reference

Source
Vasilev V.A.; Novikov A.N.: Thermochemische und volumetrische Eigenschaften des Systems N-Methylpyrrolidon-Wasser bei 288-323 K. Izv.Vyssh.Uchebn.Zaved.Khim.Khim.Tekhnol. 32 (1989) 53-56


Excess Heat Capacity Data Set 755

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 298.00 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
0.2706 0.01000
0.6868 0.02900
0.9511 0.05000
1.8685 0.09950
3.7644 0.19630
5.9351 0.30170
8.0074 0.40030
10.2646 0.50040
11.9497 0.60000
12.5796 0.66720
12.6417 0.69990
12.1138 0.79850
8.6418 0.90010
5.3849 0.95000
1.3999 0.99000

(x - liquid mole fraction)

Reference

Source
Vasilev V.A.; Novikov A.N.: Thermochemische und volumetrische Eigenschaften des Systems N-Methylpyrrolidon-Wasser bei 288-323 K. Izv.Vyssh.Uchebn.Zaved.Khim.Khim.Tekhnol. 32 (1989) 53-56


Excess Heat Capacity Data Set 756

Components

No. Formula Molar Mass CAS Registry Number Name
1 H2O 18.015 7732-18-5 Water
2 C5H9NO 99.133 872-50-4 N-Methyl-2-pyrrolidone
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 308.00 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
1.7795 0.10070
4.2590 0.19650
6.4828 0.29980
9.4244 0.40040
11.6118 0.50130
13.2613 0.60020
14.1638 0.70030
13.3775 0.80040
9.6710 0.90020

(x - liquid mole fraction)

Reference

Source
Vasilev V.A.; Novikov A.N.: Thermochemische und volumetrische Eigenschaften des Systems N-Methylpyrrolidon-Wasser bei 288-323 K. Izv.Vyssh.Uchebn.Zaved.Khim.Khim.Tekhnol. 32 (1989) 53-56

Diagrams

Excess Heat Capacity of Water+N-Methyl-2-pyrrolidone
See larger image

List of All References

Source
Vasilev V.A.; Novikov A.N.: Thermochemische und volumetrische Eigenschaften des Systems N-Methylpyrrolidon-Wasser bei 288-323 K. Izv.Vyssh.Uchebn.Zaved.Khim.Khim.Tekhnol. 32 (1989) 53-56

Excess Heat Capacity Data Overview


© DDBST GmbH