305 
' 
as 6 = 00,9338. With the normal value 9.10-2 for tne attraction 
for Te about ne—15 would have been found, which is of course 
impossible. If we assume that also here for 7). the dissociation to 
Te, is complete, and that the Te,-molecules are still further disso- 
ciated to Te,, then. n,=2:(1-+-2), and: a,, becomes — 364,6. 
10-4 & (1+-2), hence Vaz, = 19,10.10 ? kW (A H-r) — hence again 
much greater than the normal value 9, so that there are really 
isolated atoms Te, present at 7%. | 
The value of the degree of dissociation w is calculated from: 
191 VI +#=9(1 — 2) + 302, 
giving rv == 0,787. Accordingly at the critical temperature Tellurium 
is already dissociated to separate atoms at !east for the greater part. 
If the atomic attraction should then be greater than 30.10-?, e.g. 
35.10-2, « would be somewhat smaller, viz. 0,576. With a—0,79 
7a; “becomes SLI 1O AKO TE CUD 720,0 AOS as Y (La-=1.53 7. 
Just as for sulphur we have investigated the value of the molecular 
attraction of a few more compounds, viz. TeCl, and TeCl,. We 
find for this what follows. 
T, | 1056, | 104a, 102 Va, 
| | 
Te Cl4 | 1099 | 235 +4><115—695 | 979,2 | 31,3 | Te=9,7.10— 
TeCls\ 955 23542115 =465 | 569,1 EXO eae ST ee 
| 
| 
The critical temperatures have been calculated from the known 
boilingpoint temperatures, viz. 687° and 597° abs. by multiplication 
by 1,6. For TeCl, the normal value 9.10-? seems to be found. 
For TeCl,, however, the increased atomic attraction makes itself 
already felt in consequence of the released valencies. 
The different fundamental values have again been joined in the 
following table. 
TABLE Cy 
| weet | | 1056 1056 
N A A || D | A | 105 v, — id.: |! mf Í a n | k kb 
| | [Nv | |D, 0,22412 | ‘ ‘ 3 fi calculated found 
| | | | 
| | 
8 0, 16,00 2,00 1,311. 12,20 54,45 (0,813 0,736 0,355 | 1,367 74,4 71 (70) 
| || | | 
16S \ 32,06 | 2,00 | 1,806 17,76 79,24 — | 4,09 | 0,403) 1,725 || 137 (125) 
34 Se 79,2 {293 143 |183 -| 81,8 — ‘| 1,19. | 0,377} 1,880 || 155 (180) 
B2'Te |. :1215 712,45 | BONE AN ty — | 1,40 |og21| 2,281 || 218 (235) 
BAPo | + 215 | 256 || — pede ea ea. Wheto MASE pee ws zi 
Proceedings Royal Acad. Amsterdam. Vol. XIX. 
