To get the value of a physical constant of a given gas:
			Desired		Desired
	Gas		Constant	Desired	Constant
	Index	Gas	Index	Constant	Value
	12	H2 equilibrium	1	Pressure Upper Limit	120000
	12	H2 equilibrium	2	Temp upper limit	5000
	12	H2 equilibrium	3	temp lower limit	13.8
	12	H2 equilibrium	4	gas constant R	8.31434
	12	H2 equilibrium	5	critical pressure	1283.8
	12	H2 equilibrium	6	critical temp	32.938
	12	H2 equilibrium	7	critical density	15.556
	12	H2 equilibrium	8	triple point pressure	7.042088
	12	H2 equilibrium	9	triple point temp (m.p.)	13.8
	12	H2 equilibrium	10	triple point vapor density	0.062382
	12	H2 equilibrium	11	triple point liquid density	38.21425
	12	H2 equilibrium	12	molecular weight	2.01594
	12	H2 equilibrium	13	pressure of the standard state	101.325
	12	H2 equilibrium	14	accentric factor	-0.21844