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 317

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H3N 41.053 75-05-8 Acetonitrile
2 H2O 18.015 7732-18-5 Water
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Miscibility gap: No

Constant Value

Temperature 298.15 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
2.2000 0.02400
4.0000 0.04700
4.9000 0.08000
4.8000 0.10000
5.8000 0.15000
6.8000 0.20300
6.9000 0.25000
7.7000 0.28000
8.7000 0.36400
8.9000 0.39900
9.1000 0.42200
9.0200 0.50400
9.4000 0.60000
8.8000 0.67100
7.4000 0.75600
5.7000 0.82500
3.5000 0.89200
1.9000 0.94000

(x - liquid mole fraction)

Reference

Source
de Visser C.; Heuvelsland W.J.M.; Dunn L.A.; Somsen G.: Apparent Molar Volumes and Heat Capacities at 298.15 K Over the Whole Mole Fractions Range. J.Chem.Soc.Faraday Trans.1 74 (1978) 1159-1169


Excess Heat Capacity Data Set 905

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H3N 41.053 75-05-8 Acetonitrile
2 H2O 18.015 7732-18-5 Water
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 298.15 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
2.1500 0.02501
3.5100 0.05003
4.7100 0.10005
5.2500 0.15007
5.9100 0.20009
6.6100 0.25010
7.2300 0.30012
7.8300 0.35012
8.2800 0.40013
8.5400 0.45014
8.6800 0.50013
8.6200 0.55013
8.4000 0.60013
7.9300 0.65012
7.3600 0.70012
6.4900 0.75010
5.4300 0.80009
4.0900 0.85007
2.5700 0.90005
1.0500 0.95003

(x - liquid mole fraction)

Reference

Source
Nakamura M.; Tamura K.; Murakami S.: Isotope effects on thermodynamic properties: mixtures of x(D2O or H2O) + (1 - x)CH3CN at 298.15 K. Thermochim.Acta 253 (1995) 127-136


Excess Heat Capacity Data Set 1705

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H3N 41.053 75-05-8 Acetonitrile
2 H2O 18.015 7732-18-5 Water
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 298.15 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
0.5060 0.00525
1.3140 0.01469
2.0700 0.02453
2.7700 0.03575
3.3900 0.04911
3.7900 0.06082
4.0400 0.06989
4.2400 0.07980
4.4400 0.09115
4.5300 0.09912
4.9000 0.12634
4.9800 0.13875
5.1400 0.14771
5.3400 0.16914
5.7300 0.19772
5.9300 0.21566
6.0800 0.22811
6.3700 0.24766
6.6900 0.26947
7.0600 0.29883
7.0600 0.30496
7.6800 0.35594
8.0900 0.39527
8.0500 0.40014
8.2600 0.44592
8.3000 0.49022
8.3800 0.50267
8.1800 0.53832
8.2900 0.54995
7.5400 0.65972
7.1300 0.69507
6.0600 0.76022
5.1500 0.79874
3.6600 0.85309
2.8800 0.87694
2.2800 0.89705
1.7300 0.91631
0.9400 0.94523
0.3100 0.97196

(x - liquid mole fraction)

Reference

Source
Benson G.C.; D´Arcy P. J.; Handa Y.P.: V. Isobaric Heat Capacities and Ultrasonic Speeds for Water + Ethanenitrile Mixtures at 25°C. Thermochim.Acta 46 (1981) 295-301

Diagrams

Excess Heat Capacity of Acetonitrile+Water
See larger image

List of All References

Source
de Visser C.; Heuvelsland W.J.M.; Dunn L.A.; Somsen G.: Apparent Molar Volumes and Heat Capacities at 298.15 K Over the Whole Mole Fractions Range. J.Chem.Soc.Faraday Trans.1 74 (1978) 1159-1169
Nakamura M.; Tamura K.; Murakami S.: Isotope effects on thermodynamic properties: mixtures of x(D2O or H2O) + (1 - x)CH3CN at 298.15 K. Thermochim.Acta 253 (1995) 127-136
Benson G.C.; D´Arcy P. J.; Handa Y.P.: V. Isobaric Heat Capacities and Ultrasonic Speeds for Water + Ethanenitrile Mixtures at 25°C. Thermochim.Acta 46 (1981) 295-301

Excess Heat Capacity Data Overview


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