Air.
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Pressure in centimetres of mercury.
Leak, scale divi-
sions per hour
(corrected).
Leak/pressure.
1
76
8-0
0-105
f)
68
7-3
0-107
.
57
6-3
0-111
4
51
5-3
0-104
c;
40
4-9
0-122
/
27
3-45
0-128
f
)
16
2-0
0-125
(
W
)
10
1-2
0-12
Leak/pressure, mean of (5) (6) (7) = '125. Hydrogen.
-
Pressure in
centimetres
of mercury.
Leak, scale divi-
sions per hour
(corrected).
Leak/pressure.
d) .
77
1-75T
fFrom Zn and H^SO,,.
(2)
77
1 '70 1
(B) .
77
1 -67 f =
' 023 j palladium
(4) .
77
1-94J
(5) .
70
1 -6
0'023
(6) .
68
-022 From Zn and H.,SO 4 .
(7) .
43
0-96
0*022 palladium.
(8) .
36
0-7
-020
Leak/pressure, mean of (1) (7) = '0225. Relative leak (air = 1) =0 -184.
Carbonic Acid.
Pressure in centimetres of mercury.
Leak, scale divi-
sions per hour
(corrected) .
Leak/pressure.
(1) .
49
8-7
0-178
(2) .
41
7-7
.0 -188
3 .
35
7-1
0-203
28
6-1
0-218
(5) .
23
4-8
0-209
(6) .
17
3-3
0-194
(7) .
9-7
1-9
0-196
(8) .
4-6
1-1
0-24
Leak/pressure, mean of (3) (6) = '211. Kelativ leak (air 1) =1 '69.
