Unlike interactions and binary diffusion in polar-nonpolar mixtures; kryptonmethylene chloride and kryptonethylchloride

Singh, Yashwant ; Srivastava, B. N. (1968) Unlike interactions and binary diffusion in polar-nonpolar mixtures; kryptonmethylene chloride and kryptonethylchloride International Journal of Heat and Mass Transfer, 11 (12). pp. 1771-1778. ISSN 0017-9310

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0017-9310(68)90020-3

Abstract

Binary diffusion coefficients of gases having one polar constituent have been measured in the temperature range 275 to 318°K using the two-bulb technique of Ney and Armistead. The systems investigated were Kr-CH2Cl2 and Kr-C2H5Cl. Radioactive 85Kr was used as a tracer and a scintillation counter was employed to determine its concentration at different times. The mass correction was applied to get the normal diffusion coefficients for both the systems. The experimental D12 values have been employed to get the unlike interaction parameters on the Lennard-Jones (12:6) potential and compared with those obtained by using the combination rules for a polar-nonpolar system and the force constants of the polar gas from viscosity as well as from second virial data. The off-centre model of Blanks and Prausnitz is discussed in detail.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:73152
Deposited On:02 Dec 2011 10:53
Last Modified:02 Dec 2011 10:53

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