A New Method to Calculate the Pure Component Parameters of Any Two-Parameter Equation of State

Table 2

Percent absolute average deviation for the enthalpy change of vaporization.

Species	%AAD^a using original parameters	%AAD using parameters based on the new method	Experimental data reference
Argon	3.72	4.82	[15]
i-butane	1.06	6.99	[16]
n-butane	1.02	9.01	[15]
Ethane	8.86	10.74	[15]
Propane	2.70	9.90	[15]
Propylene	5.35	9.95	[15]
SF6	12.50	14.39	[16]

^aPercent Average Absolute Deviation,%AAD=(100%/𝑛)∑^𝑛1|(𝑃^cal−𝑃^exp)/𝑃^exp|.