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48 Essentials of Physical Chemistry
TABLE 3.2
Viscosities of Selected Gases
at 1 atm and 3008K
Gas mPa s Micropoise
Air 18.6 186
Ar 32.9 329
HCl 14.6 146
H 2 9.0 90
12.6 126
D 2
H 2 O 10.0 100
D 2 O 11.1 111
He 20.0 200
Kr 25.6 256
17.9 179
N 2
20.8 208
O 2
Xe 23.2 232
CO 17.8 178
15.0 150
CO 2
CH 4 11.2 112
HCCH 10.4 104
H 2 CCH 2 10.4 104
7.5 75
C 4 H 10
Q
Dust cover
Capillary
Splash bulb
Y
R
X Mercury
Final mercury
To gas supply
level
(with needle valve)
b
B
T
a
FIGURE 3.8 Gas viscometer. (From Shoemaker, D.P. et al., Experiments in Physical Chemistry, 6th Edn.,
McGraw-Hill Co., New York, 1996, p. 129. With permission.)
