153 
From this equation table 1 has been calculated by means of 
which the value of the diffusion constant can be found if the time 
of diffusion and the height of the vessel are known. 
TABLES 
| | 
ore yl Dt | OQ | Dt 
Qo | he Qo | h2 
| | | 718 
0.80 | 0.03141 | 0.54 | 0.16630 
322 | 734 
0.79 0.03463 ke arte 0. 17364 
338 | 753 
0.78 0.03801 0.52 0.18117 
354 | 769 
0.71 | 0.04155 | 0.51 | 0.18886 
| 369 | | 787 
0.76 0.04524 400550 *) |: 0.49678 
385 | | 805 
0.75 0.04909 Li 20049) | 05204878 
400 | 825 
0.74 | 0.05309 | 0.48 0.21303 
| 417 842 
0.13 | 0.05726 0.47 0.22145 
431 | 862 
0.72 0.06157 0.46 0.23007 
448 | 884 
0.71 0.06605 Pi 10-45 0.23891 
463 | | 904 
0.70 0.07068 |. + 0:44 1 0.24795 
480 926 
0.69 0.07548 0.43 | 0.25721 
495 | 949 
0.68 0.08043 ) =O), a2 0.26670 
Bul, 973 
0.67 0.08554 0.41 0.27643 
525 | 998 
0.66 0.09079 0.40 0.28641 
542 1023 
0.65 0.09621 | 0.89 | 0.29664 
558 1050 
0.64 0.10179 0.38 | 0.30714 
574 1079 
0.63 0.10753 es Osa 0.31793 
588 1108 
0.62 0.11341 or eas 0.32901 
605 | 1140 
0.61 0.11946 ee) eRe 0.34041 
| 621 | 1175 
0.60 0.12567 0.34 0.35216 
638 | 1208 
0.59 0. 13205 02500424 
651 | 1247 
0.58 0. 13856 | 0.32 0.37671 
| 669 | 1286 
0.57 0. 14525 0.31 0.38957 
685 | 1328 
0.56 0.15210 | 0.30 0.40285 
702 
0.55 0.15912 
118 
| 
