Gas-phase transport phenomena at low temperatures: Thermal diffusion in an Ar-Kr system
✍ Scribed by V. L. Zhdanov; O. A. Kolenchits; B. P. Mathur; S. C. Saxena
- Publisher
- Springer
- Year
- 1980
- Tongue
- English
- Weight
- 509 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0195-928X
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✦ Synopsis
A metal two-bulb apparatus for the measurement of the thermal diffusion factor, c~r, especially at temperatures below room temperature, has been designed and constructed. The results for the argon-krypton system are reported, and these cover five mixture compositions (25, 40, 50, 60, and 75% of krypton). The top bulb is maintained at 293.2 K, while the temperature of the lower bulb is varied in the range 102 250 K. The measured c~ r values are estimated to be accurate within _+4%. The positive minimum in the present aT values is less pronounced than that reported by some other workers, and this is attributed to the operating conditions and to the apparatus geometry.