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 426
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
H2O |
18.015 |
7732-18-5 |
Water |
| 2 |
C2H6O2 |
62.068 |
107-21-1 |
1,2-Ethanediol |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| Excess Heat Capacity [J/mol*K] |
x1 [mol/mol] |
| 1.3310 |
0.25210 |
| 1.2904 |
0.36730 |
| 1.7477 |
0.53900 |
| 2.4441 |
0.68700 |
| 2.3387 |
0.82690 |
| 3.2929 |
0.90300 |
| 1.5822 |
0.95400 |
| 0.4809 |
0.98090 |
| 0.9582 |
0.99540 |
(x - liquid mole fraction)
Reference
| Source |
| Manohara Murthy N.; Subrahmanyam S.V.: Behaviour of Excess Heat Capacity of Aqueous Non-Electrolytes. Indian J.Pure Appl.Phys. 15 (1977) 485-489 |
Excess Heat Capacity Data Set 620
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
H2O |
18.015 |
7732-18-5 |
Water |
| 2 |
C2H6O2 |
62.068 |
107-21-1 |
1,2-Ethanediol |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| Excess Heat Capacity [J/mol*K] |
x1 [mol/mol] |
| -0.0400 |
0.04010 |
| -0.1000 |
0.09480 |
| -0.1500 |
0.14350 |
| -0.1800 |
0.22010 |
| -0.1400 |
0.30190 |
| -0.0100 |
0.38670 |
| 0.2000 |
0.47320 |
| 0.4200 |
0.53610 |
| 0.6900 |
0.60040 |
| 0.8600 |
0.64180 |
| 1.0800 |
0.69210 |
| 1.3500 |
0.74090 |
| 1.6100 |
0.78110 |
| 1.8300 |
0.81620 |
| 1.9800 |
0.85000 |
| 2.1200 |
0.88010 |
| 2.0900 |
0.89930 |
| 1.9800 |
0.92010 |
| 1.8100 |
0.93510 |
| 1.5500 |
0.94960 |
| 1.2000 |
0.96480 |
| 0.7500 |
0.97990 |
| 0.3900 |
0.98990 |
(x - liquid mole fraction)
Reference
| Source |
| Douheret G.; Pal A.; Hoiland H.; Anowi O.; Davis M.I.: I. Molar volumes, isobaric molar heat capacities, ultrasonic speeds, and isentropic functions. J.Chem.Thermodyn. 23 (1991) 569-580 |
Excess Heat Capacity Data Set 1517
Components
| No. |
Formula |
Molar Mass |
CAS Registry Number |
Name |
| 1 |
H2O |
18.015 |
7732-18-5 |
Water |
| 2 |
C2H6O2 |
62.068 |
107-21-1 |
1,2-Ethanediol |
Search the DDB for all data of this mixture
Miscibility gap: No
Constant Value
Data Table
| Excess Heat Capacity [J/mol*K] |
x1 [mol/mol] |
| -0.9125 |
0.27680 |
| -2.0474 |
0.46280 |
| -3.1744 |
0.59620 |
| -3.3621 |
0.69670 |
| -2.8016 |
0.77500 |
| -2.5637 |
0.84280 |
| -1.8044 |
0.88940 |
| -1.4246 |
0.93235 |
| -0.7792 |
0.96876 |
(x - liquid mole fraction)
Reference
| Source |
| Nan Z.; Liu B.; Tan Z.: Calorimetric investigation of excess molar heat capacities for water + ethylene glycol from T = 273.15 to T = 373.15 K. J.Chem.Thermodyn. 34 (2002) 915-926 |
Diagrams
List of All References
| Source |
| Manohara Murthy N.; Subrahmanyam S.V.: Behaviour of Excess Heat Capacity of Aqueous Non-Electrolytes. Indian J.Pure Appl.Phys. 15 (1977) 485-489 |
| Douheret G.; Pal A.; Hoiland H.; Anowi O.; Davis M.I.: I. Molar volumes, isobaric molar heat capacities, ultrasonic speeds, and isentropic functions. J.Chem.Thermodyn. 23 (1991) 569-580 |
| Nan Z.; Liu B.; Tan Z.: Calorimetric investigation of excess molar heat capacities for water + ethylene glycol from T = 273.15 to T = 373.15 K. J.Chem.Thermodyn. 34 (2002) 915-926 |
Excess Heat Capacity Data Overview
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