Diffusion of xenon in liquid alkanes: Temperature dependence measurements with a new method. Stokes–Einstein and hard sphere theories
10.1063/1.458413
Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

Measurements are reported of the diffusion constant D(T) for xenon gas, in the form of the radioisotope 133Xe, through liquid n-octane, n-decane, and n-tetradecane, in the range 10–40 °C. The values range from D (10.0 °C, Xe→n-C14H30)=1.32×10−5 cm2/s to D (40.0 °C, Xe→n-C8H18)=6.02×10−5 cm2/s. A new experimental method is used in which D is obtained by monitoring the decrease in concentration as gas diffuses into the liquid in an effectively one-dimensional geometry. As expected, the results do not agree with the Stokes–Einstein law. They do follow the usual correlation Dηp=AT, with p=0.708 and A=9.80×10−8, where η is the liquid viscosity in centipoises and T is in K. Application to these results of the rough-hard-sphere theory of diffusion is discussed. A quantitative analysis cannot be made until molecular dynamics results for smooth-hard-sphere diffusion are available.

Bibliography

Pollack, G. L., Kennan, R. P., Himm, J. F., & Stump, D. R. (1990). Diffusion of xenon in liquid alkanes: Temperature dependence measurements with a new method. Stokes–Einstein and hard sphere theories. The Journal of Chemical Physics, 92(1), 625–630.

Authors 4
  1. Gerald L. Pollack (first)
  2. Richard P. Kennan (additional)
  3. Jeffrey F. Himm (additional)
  4. Daniel R. Stump (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 9:21 a.m.)
Deposited 1 year, 6 months ago (Feb. 10, 2024, 6:15 a.m.)
Indexed 1 year ago (Aug. 5, 2024, 1:09 p.m.)
Issued 35 years, 7 months ago (Jan. 1, 1990)
Published 35 years, 7 months ago (Jan. 1, 1990)
Published Print 35 years, 7 months ago (Jan. 1, 1990)
Funders 0

None

@article{Pollack_1990, title={Diffusion of xenon in liquid alkanes: Temperature dependence measurements with a new method. Stokes–Einstein and hard sphere theories}, volume={92}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.458413}, DOI={10.1063/1.458413}, number={1}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Pollack, Gerald L. and Kennan, Richard P. and Himm, Jeffrey F. and Stump, Daniel R.}, year={1990}, month=jan, pages={625–630} }