The concentration dependence of the diffusion coefficient of the system helium-argon at 300°K and 1 atmosphere pressure
✍ Scribed by P.J. Carson; M.A. Yabsley; Peter J. Dunlop
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 219 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Fifty expFcrimentn1 points are presented for the concentration dependence of the binary diffusion coefficient, CD 12, of the system helium-agon at 300°K and 1 atm pressure. These-values of 9 I2 are best represented by a parabola in the mole fraction of argon, x2.
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A Loschmidt cell has been used to measure the pressure dependence, at constant composition and temperature, for six systems consisting of binary mixtures of helium. The results are compared with the Thorne-Enskos theory for moderately dense gases of rigid spheres, and an extension to the theory suse
The pressure dependences of the binary drffusion coefficients of ten systems containing helium have been measured at constant composition at 300 K. The results are compared with the Thorne-Enskog theory for moderately dense gases of rigid spheres, and a previously suggested empirical extension to th