( 644 ) 
9 
For this we find the value 0,5, when Dent 1.6. PB == O04: 
ae 
which is a very plausible value. 
When the value of Ad diminishes, also the value of 7,: 7: 
becomes slightly less, but remains in the neighbourhood of 0,5. But as 
we shall immediately see, the whole of the coexistence-curve liquid- 
solid has come below p=O, already for 45 = 0,4, and so it is no 
longer realisable — at least with the values of 6, , 4d, etc. assumed by us. 
This will appear from the tables following here, which hold for 
Ab=0,4. 
27. We shall calculate the isotherms of 50°, 60°, and 70° for the 
case (see fig. 24) 
Boa CACO, == 2h == 1. 
The value of 4 is then — 25,6. The critical data are 7,—= 143°, 
pe = 51 (ef. § 25; 26, is then namely — 1,4). 
[eee 
For 7 = 50 we have Be and the formula (d) passes into 
log*® oy — 2,012 — 0,4843 p — log’ g, 
while 
v=1-4 04 (8 + et) ee 
p 2) 
In consequence of this we get: 
T = 50 
p | log B | v | Cfoz | p 
ee 
7 | TTE OE Ke CO Saga) a8 
6 | —1,872)) OEE 0 AAB RE | —504(E) 
5 | —0.859 | 0.348 | 1.247 1735 | —485 
4 | —0.327 | 0.566 | 1.383 1442 | —4AQ 
aan} 0 232 | 0.794 | 1,597 1114 | —364 (D) 
9 0.842 | 0.935 | 1.761 ra — site) 
1578 | 0.987 | 2.490 563 313 
| 
| 
15 
For 7 =60 we have 9 = and further: 
oy ’ 
