Carnegie Institution of Washington publication . Diver shortened. Long diver. Long interval. time-interval to reach rigorously normal conditions of equilibrium, theresult is patent that the true diffusion rates do not appear until the time-interval has been prolonged sometimes as much as five or six weeks. Even Table 22.—Air-air through water. Vessel H (double tube). Constants as in table23. Date. Oct. 26 28 2C)30 Nov. 1 2 456 78 9111213 Barom- t eter. 75-66 O j • 75-91 ; 77-33 7682 7507 ; 75-55 76.
Carnegie Institution of Washington publication . Diver shortened. Long diver. Long interval. time-interval to reach rigorously normal conditions of equilibrium, theresult is patent that the true diffusion rates do not appear until the time-interval has been prolonged sometimes as much as five or six weeks. Even Table 22.—Air-air through water. Vessel H (double tube). Constants as in table23. Date. Oct. 26 28 2C)30 Nov. 1 2 456 78 9111213 Barom- t eter. 75-66 O j • 75-91 ; 77-33 7682 7507 ; 75-55 , 75-85 // Io I) 88 15 7 ! 15 ! 48. 78 4i 94 78 12 5950 503 599504462442386403298 3329370403 35i 254224214 Date. Barom-eter. Nov 5 H Vq 55 193181 59-81 5 123 59-42 5 095 59- 555 073064046 554 027005 987 4 44 957 888 837. OctU .10 25 30 Fig. 20.—Chart showing loss of standardvolumes of gas in diver in lapse ofdays. Diffusion of air through water. if the curve is smooth, it is always hazardous to assume that the true diffu-sion rate has been exhibited within a month. The double-tube apparatus H charged with fresh water and air showedthe diffusions contained in table 22 and fig. 20. 66 THE DIFFUSION OF GASES THROUGH The rate of diffusion appears as 2*0 = or io10k = a value which again approaches the normal result in Chapter II, and affords strong credence that the much more troublesome double-tube apparatus is unnecessary in practice. It is interesting to compare figs. 19 c and 20, which, though obtained with totally different apparatus, show identical thermal discrepancies. The new results obtainedwith apparatus A have alreadybeen discussed. Table 21is a brief summary of thevalues for the diffusion of airthrough water as obtai
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