Table 3. Summary of reanalysis of Keller’s gaseous He⁴ isotherms [11].

The various Quantities have the same meaning as in table 2. The three constant fits gave a statistically better fit for only one isotherm, so the results of the two constant fits have been accepted as being more meaningful and have been used for figure 2 of Part II.

Isotherm	Units	A	B	C	D	E
No. of points		12	14	12	17	9
${\overline{P}}_4$	mm Hg	588.55	291.31	147.55	52.758	35.541
T58(${\overline{P}}_4$)	mdeg	3954.2	3339.2	2864.0	2315.1	2147.3
P3(${\overline{P}}_4$)	mm Hg			528.42	254.50	195.21
T62[P3(${\overline{P}}_4$)]	mdeg			2864.0 ± 0.2	2315.0 ± 0.2	2147.6 ± 0.2
TWO-CONSTANT FIT
Tiso	mdeg	3953.7 ± 2.1	3338.4 ± 2.1	2863.5 ± 0.9	2316.7 ± 2.3	2148.9 ± 0.9
B	cm3/mole	−83.97±0.66	−103.60±0.78	−124.16±0.63	− 153.38±4.21	−176.04±2.04
Variance		8.7	17.8	3.6	23.4	1.69
(T58 – Tiso)	mdeg	−1. 5±2.1	0.8±2.1	0.5±0.9	−1.6±2.3	−1.6±0.9
(T62 – Tiso)	mdeg			0.5±1.1	−1.7±2. 5	−1.3±1.1
THREE-CONSTANT FIT
Tiso	mdeg	3953.8±4.3	3335.3±3. 7	2860.9±1.5	2311.9±6.1	2146. 5±2.8
B	cm3/mole	−82.16±3.52	−99.80±3.78	−118.47±2.86	−132.1 ±25.7	−162.6±15.8
C	cm6/mole2	−1452±2773	−3133 ±3042	−6741 ±3331	− 50,490±60,020	−38, 900±45,160
Variance		9.4	17.7	2.8	23.9	1.75