Dortmund Data Bank

Entropy of Water

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.


Formula Molar Mass CAS Registry Number Name
H2O 18.015 7732-18-5 Water
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Data Table

T [K] Molar Entropy [J/(mol*K)] State Reference
298.00 188.70 Vapor 3
298.00 188.71 Vapor 2
298.00 188.74 Vapor 1
298.10 188.70 Vapor 4
463.10 203.55 Vapor 4
485.00 205.48 Vapor 4

List of References

Number Source
1 Brickwedde F.G.; Moskow M.; Aston J.G.: Equilibrium Constants of some Reactions Involved in the Production Of1,3-Butadiene.. J.Res. NBS 37 (1946) 263-279
2 McBride B.J.; Gordon S.: Thermodynamic functions of several triatomic molecules in the ideal gas state.. J.Chem.Phys. 35 (1961) 2198-2206
3 Gordon A.R.: Calculation of thermodynamic quantities from spectroscopic data for polyatomic molecules; the free energy, entropy and heat capacity of steam.. J.Chem.Phys. 2 (1934) 65-72
4 Giauque W.F.; Archibald R.C.: The Entropy of Water from the Third Law of Thermodynamics. The Dissociation Pressure and Calorimetric Heat for the Reaction Mg(OH)2 = MgO + H2O. The Heat Capacities of Mg(OH)2 and MgO from 20 to 300°K. J.Am.Chem.Soc. 59 (1937) 561-569

Pure Component Data Overview