Thermodynamic Properties of Nitrous Oxide

Temperature K Pressure MPa Density mol/dm3 Volume dmVmol Int. energy kj/mol Enthalpy kj/mol Entropy kJ/(mol-K) cv kJ/(mol-K) C kJ/(mol-K) Sound speed m/s Joule-Thomson K/MPa 

The values in these tables were generated from the NIST REFPROP software (Lemmon, E. W., McLinden, M. O., and Huber, M. L., NIST Standard Reference Database 23 Reference Fluid Thermodynamic and Transport Properties—REFPROP, National Institute of Standards and Technology, Standard Reference Data Program, Gaithersburg, Md., 2002, Version 7.1). The primary source for the thermodynamic properties is Lemmon, E. W., and Span, R., Short Fundamental Equations of State for 20 Industrial Fluids, /. Chem. Eng. Data 51(3) 785-850, 2006. Validated equations for the viscosity and thermal conductivity are not currently available for this fluid. 

The uncertainties in the equation of state are 0.1% in density in the liquid and vapor phases between 220 and 300 K, 0.25% at temperatures above 300 K and at temperatures below 220 K, and 0.5% in the critical region, except very close to the critical point. The uncertainty in vapor pressure is 0.2%, that for heat capacities is 3%, and that for the speed of sound in the vapor phase is 0.05% above 220 K. The uncertainty in the liquid phase is not known but is estimated to be within 5%. 

Temperature Pressure Density Volume Int. energy Enthalpy Entropy c. Sound speed Joule-Thomson 

TABLE 2-242 Thermodynamic Properties of Nitrous Oxide (Concluded) 

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