( 642 ) 
int ee 85 
Now we calculate the isotherm of 7'= 70. Here A and 
further : 
B? 2700 
log*® = 2,367 —0,4313p — log’ p ; p = 280p — : 
Fi 1— 3? u? 
from which the following table is drawn up. 
r= Jp 
— — - 
p bags de B v af, P 
7 |—1.518| 0.4172 | 1.170 | 41972 | — 42 
6 | —1.017 | 0.296 | 1.256 i744 | — 31 (E) 
5 —0 504 | 0.488 1.393 | 14392 + 8 
| 
4 | 40.020 | 0.718 | 1.574 1099 | + 30 (D) 
3 | 0.587 | 0.891 | 1.761 87! =o 
2 1.497 | 0.970 | 4.977 691 | —134 
1 1.933 | 0.994 | 2.494 434 | —154(C) 
0.5} 92.451 | 0.998 | 3.497 on | = Rh 
The pressure of coexistence liquid-solid is about p=O0, so that 
we have reached the triple point S (fig. 23), and from this moment 
the mentioned pressure becomes realisable. 
Now 775 (fig. 30) must be calculated for the determination of 
~ 
| > ae 
the point Cr (fig. 23). With d= = we get: 
> 
B : 2700 
log*® Er = 2,419 —0,4345p — log p ; p—=300p — —_. 
— S$ v" 
This yields: 
a 
p | log’ B | md at p 
| 
7 | 4.466} -0.489 |A tene 
6 | —0.965 | 0.313 | 1.266 1684 116 (E) 
5 | —0.452 | 0.511 | 1.406 | 1366 | 134 (D) 
4 | +0.080 | 0.739 | 1.587 1072 | 128 
3 0.639 | 0.902 | 1.768 864 | 36 
| | 
2 1.29 | 0.973 | 1.979 | 689 | — 89 
1 1.085 | tags 15405 1E es (C) 
oe zn 0.998 | 3.497 | 221 od 
