Research Article
Thermodynamic Properties of Vapors from Speed of Sound
Table 4
The maximum RD in the subcritical domain.
| Substance | RD [%] | | | |
| Ar | +0.0014 −0.0001 | +0.0012 −0.0532 | +0.0016 −0.0801 | N2 | +0.0025 −0.0000 | +0.0135 −0.0875 | +0.0142 −0.1085 | CH4 | +0.0021 −0.0004 | +0.0352 −0.0482 | +0.0361 −0.0787 | CO2 | +0.0018 −0.0003 | +0.0073 −0.0211 | +0.0074 −0.0562 |
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