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 62

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H6O 46.069 64-17-5 Ethanol
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]
2.5600 0.01890
4.4700 0.03250
6.6700 0.04940
8.8400 0.06710
9.7300 0.07570
10.6000 0.08450
11.9900 0.10110
13.3900 0.12550
13.8300 0.14140
14.0800 0.19820
13.7500 0.23230
12.8200 0.33490
11.4500 0.43050
10.3200 0.50750
9.5800 0.56020
7.7800 0.67120
7.2900 0.69180
6.3700 0.74180
4.4200 0.83240
2.1200 0.92010

(x - liquid mole fraction)

Reference

Source
Grolier J.-P.E.; Wilhelm E.: Excess Volumes and Excess Heat Capacities of Water + Ethanol at 298.15 K. Fluid Phase Equilib. 6 (1981) 283-287

Excess Heat Capacity Data Set 88

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H6O 46.069 64-17-5 Ethanol
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]
1.6200 0.01024
2.3800 0.01517
3.0700 0.01978
3.2400 0.02093
3.8700 0.02521
4.5300 0.02983
6.0900 0.04118
7.0100 0.04856
7.4400 0.05192
7.5600 0.05270
7.7300 0.05431
8.9400 0.06460
9.3500 0.06880
11.4500 0.09224
11.5600 0.09302
11.9500 0.09960
12.6500 0.11004
13.1400 0.12005
13.4000 0.12755
13.7000 0.14058
13.5900 0.15020
13.9100 0.15814
13.6800 0.16947
13.8100 0.17569
13.1300 0.20210
13.3100 0.20232
12.8700 0.22802
12.8000 0.23109
12.4500 0.24341
12.4700 0.24538
12.3800 0.24652
12.4900 0.24935
12.1400 0.27037
12.0600 0.27588
11.9600 0.27752
11.7500 0.29927
11.0900 0.34063
10.4200 0.38454
9.7900 0.42169
9.6200 0.43583
8.6600 0.50823
8.4700 0.52664
7.5600 0.59548
6.7300 0.65789
5.9300 0.71417
5.7400 0.72553
4.3000 0.81208
3.6900 0.84267
2.3300 0.90538
1.2300 0.94978

(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 89

Components

No. Formula Molar Mass CAS Registry Number Name
1 C2H6O 46.069 64-17-5 Ethanol
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]
2.1500 0.01486
3.1900 0.02180
4.8300 0.03336
5.8000 0.04122
8.5900 0.06324
9.7200 0.07385
10.9100 0.08513
11.2700 0.09003
11.8000 0.09944
12.8000 0.10982
13.4300 0.12421
13.9600 0.14846
13.9000 0.14846
13.9500 0.15017
14.3900 0.17568
14.4800 0.20203
14.3400 0.20238
14.3600 0.22808
14.3200 0.25027
14.1300 0.25027
14.1400 0.25249
14.0000 0.27915
13.6100 0.30556
13.8100 0.30803
13.4600 0.33549
13.3700 0.35068
13.2500 0.35068
13.0000 0.37785
12.7900 0.40480
12.4900 0.42639
12.1200 0.45667
11.4600 0.50650
10.8900 0.54654
10.8200 0.54654
10.4500 0.57072
10.0900 0.60495
9.4500 0.64322
9.3300 0.64581
8.5300 0.69518
7.6500 0.73412
7.2500 0.75609
6.1500 0.80913
5.4400 0.83365
4.2000 0.87510
3.6300 0.89463
3.6000 0.89463
2.7800 0.92221
2.0300 0.94436

(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

Diagrams

Excess Heat Capacity of Ethanol+Water
See larger image

List of All References

Source
Grolier J.-P.E.; Wilhelm E.: Excess Volumes and Excess Heat Capacities of Water + Ethanol at 298.15 K. Fluid Phase Equilib. 6 (1981) 283-287
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 Overview

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