Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
94 (1991), S. 2130-2135
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
A method is developed for the simultaneous determination of the equation of state and heat capacity of a gas over a wide range of pressure and temperature. This is based on stepwise construction of pT isochores starting from one experimental reference pV isotherm and using speed-of-sound data of the gas as a function of pressure and temperature. The application of the method is illustrated by computing the density and heat capacity of argon at temperatures from 148.15 to 298.15 K and at pressures from 100 to 1000 MPa. In the region of overlap, the calculated densities are found to be in good agreement with those obtained previously from direct measurements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.459936
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