INSTITUTE OF SCIENCE

www.instituteofscience.com

 
     [N] 

 

     Observations on Behavior of H2 Gas.  S.H. Shakman

 

Flint's hypothesis of a weight of 4 for H2 gas on a scale of 32 for

O2 gas* is supported by (1) similarities with He gas: (a) He has

about 98% the lifting power of H2** and (b) an average of less than

4% separates observed diffusion coeffi- cients for He and H2 in the

8 instances affording direct comparison listed in references***;

(2) peculiarities in the behavior of H2 gas as noted by (a)

Arrhenius, who referred to hydrogen's cathode ray

absorption-to-density ratio (5610) as a "notable exception" from

the mean [2794=mean for 8 sol- ids (collodium, paper, glass, mica,

aluminum, brass, silver, gold) and 3 gases at 760 mm. Hg. (H2, air,

SO2) as derived by Lenard]; however, when H2 is assigned a weight

of 4  

(v.s. 2), its absorption-to-density ratio (2805) correlates closely

with this mean****, and (b) Graham, who commented that the "want of

mechanical equivalency in hydrogen mix- tures is exceedingly

remarkable, being a marked departure from the usual uniformity of

gaseous properties"*****; and  

(3) previously reported studies involving approximately 200

diffusion coefficients.****** 

 

*FLINT, L.H., Behavior Patterns of Hydration (1964), Ch. 11. **CRC

Handbook of Chemistry and Physics, 1985-6, B-20. 

***CHAPMAN, S., etal, Mathematical Theory of Non-Uniform 

   Gases (1970), 263, 267; and HIRSCHFELDER, J.O., etal., 

   Molecular Theory of Gases and Liquids (1954), 579, 601. 

****ARRHENIUS, S., Theories of Chemistry (1907), 91. 

*****GRAHAM, THOMAS, Elements of Chemistry (1850), 81. 

******SHAKMAN, S.H., Abstracts AAAS, 1986, p. 119 (No. 212). 

IOS

BOOKS