Density and Heat Capacity of Liquids from Speed of Sound

Table 8

The average absolute deviation (AAD) in the subcritical domain.

Substance	AAD, %
	IBVP-1	IBVP-2	IBVP-1	IBVP-2
	Ar	0.0001	0.0001	0.0084	0.0042
N2	0.0003	0.0003	0.0066	0.0064
CO2	0.0004	0.0002	0.0903	0.0175
CH4	0.0010	0.0010	0.0260	0.0154
Average	0.0005	0.0004	0.0328	0.0109