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 86

Components

No. Formula Molar Mass CAS Registry Number Name
1 CH4O 32.042 67-56-1 Methanol
2 H2O 18.015 7732-18-5 Water
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 288.15 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
1.0000 0.01298
1.4500 0.01919
1.8500 0.02497
2.2000 0.03031
2.8400 0.04100
3.2700 0.04892
3.3700 0.05129
3.8700 0.06145
4.1700 0.06864
4.3100 0.07250
4.6000 0.08092
4.9000 0.09083
5.1400 0.10103
5.4700 0.12010
5.4800 0.12427
5.6500 0.14895
5.6500 0.17252
5.6000 0.18915
5.5000 0.20456
5.3400 0.22548
5.0600 0.25033
4.9300 0.27162
4.7200 0.29087
4.4700 0.31944
4.4100 0.32388
4.2300 0.34111
4.0100 0.37193
3.6100 0.40689
3.5000 0.43104
3.2600 0.46294
3.0300 0.48619
2.8100 0.52346
2.5400 0.54547
2.4100 0.57309
2.3700 0.58465
2.0200 0.63044
1.8700 0.64739
1.7700 0.66984
1.5300 0.70073
1.4300 0.72532
1.1200 0.76577
0.9000 0.80009
0.6600 0.83749
0.5400 0.85313
0.3900 0.88432
0.1500 0.93664

(x - liquid mole fraction)

Reference

Source
Benson G.C.; D'Arcy P.J.: Excess Isobaric Heat Capacities of Water-n-Alcohol Mixtures. J.Chem.Eng.Data 27 (1982) 439-442


Excess Heat Capacity Data Set 87

Components

No. Formula Molar Mass CAS Registry Number Name
1 CH4O 32.042 67-56-1 Methanol
2 H2O 18.015 7732-18-5 Water
Search the DDB for all data of this mixture

Miscibility gap: No

Constant Value

Temperature 308.15 K

Data Table

Excess Heat Capacity [J/mol*K] x1 [mol/mol]
1.1000 0.01547
1.5300 0.02195
1.8300 0.02617
2.2300 0.03226
2.2900 0.03339
3.0200 0.04519
3.1900 0.04811
3.4200 0.05338
3.4700 0.05375
4.5700 0.07401
4.8800 0.08104
5.6800 0.10055
5.8600 0.10632
6.4700 0.12494
7.0400 0.14923
7.1700 0.16010
7.3000 0.17036
7.4600 0.17582
7.6600 0.20835
7.7300 0.21698
7.7800 0.22351
7.8100 0.24514
7.8100 0.26453
7.7900 0.27152
7.5300 0.31055
7.5400 0.32620
7.3900 0.34494
7.3400 0.34508
7.3700 0.35666
7.1900 0.36598
7.2500 0.37366
7.1800 0.37730
6.8000 0.41379
6.8300 0.42158
6.5100 0.45875
6.3600 0.46044
5.9400 0.50947
5.8200 0.51944
5.4400 0.55406
4.8900 0.61254
4.3600 0.65628
4.0400 0.68870
3.9200 0.70020
3.8300 0.70566
3.7900 0.70635
3.1000 0.76118
2.5100 0.80642
1.9600 0.85033
1.9300 0.85274
0.7700 0.94706

(x - liquid mole fraction)

Reference

Source
Benson G.C.; D'Arcy P.J.: Excess Isobaric Heat Capacities of Water-n-Alcohol Mixtures. J.Chem.Eng.Data 27 (1982) 439-442


Excess Heat Capacity Data Set 92

Components

No. Formula Molar Mass CAS Registry Number Name
1 CH4O 32.042 67-56-1 Methanol
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]
0.7050 0.00939
1.4860 0.02039
2.0600 0.02903
2.7500 0.03997
3.2100 0.04912
3.3800 0.05097
3.8400 0.05965
4.2800 0.06899
4.7300 0.07943
5.1800 0.09125
5.4600 0.10082
5.4900 0.10179
6.2400 0.13120
6.2900 0.14494
6.7700 0.18518
6.7500 0.20135
6.7400 0.20174
6.7500 0.23339
6.5400 0.27443
6.2900 0.29892
6.2300 0.30531
5.9800 0.33620
5.5400 0.38239
5.4900 0.39491
5.4300 0.40012
4.9200 0.45650
4.5000 0.50538
4.5000 0.50685
4.1000 0.55333
3.7100 0.59807
3.6000 0.60487
3.2600 0.64826
2.8000 0.69670
2.7000 0.69674
2.3100 0.74753
1.8200 0.79718
1.6800 0.79859
1.4000 0.84671
0.6600 0.90112
0.7200 0.90768
0.4700 0.93752
0.2400 0.95817

(x - liquid mole fraction)

Reference

Source
Benson G.C.; D'Arcy P.J.; Kiyohara O.: II. Isobaric Heat Capacities of Water-n-Alcohol Mixtures at 25 °C. J.Solution Chem. 9 (1980) 931-938

Diagrams

Excess Heat Capacity of Methanol+Water
See larger image

List of All References

Source
Benson G.C.; D'Arcy P.J.: Excess Isobaric Heat Capacities of Water-n-Alcohol Mixtures. J.Chem.Eng.Data 27 (1982) 439-442
Benson G.C.; D'Arcy P.J.; Kiyohara O.: II. Isobaric Heat Capacities of Water-n-Alcohol Mixtures at 25 °C. J.Solution Chem. 9 (1980) 931-938

Excess Heat Capacity Data Overview


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