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Title of Journal: Int J Thermophys

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Abbravation: International Journal of Thermophysics

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Springer US

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1572-9567

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The Experimental Study of Temperature Dependence o

Authors: A F Bogatyrev M A Nezovitina
Publish Date: 2013/11/23
Volume: 34, Issue: 11, Pages: 2065-2075
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Abstract

An experimental study of the temperature dependence of the binary diffusion coefficients BDCs was conducted for five binary mixtures of gases mathrmH 2mathrmN 2 mathrmH 2mathrmCO mathrmH 2mathrmCH 4 mathrmH 2mathrmC 2mathrmH 6 and mathrmH 2mathrmC 3mathrmH 8 Measurements were carried out with the use of a steadyflow method in the temperature range from 250 K to 900 K and the pressure range from 01 MPa to 15 MPa The determination of the BDCs is based on analysis of the volume fraction of the diffusing gas in the gas flow The experimental data were compared with the results of calculations by the proposed formula evaluated within the framework of the elementary kinetic theory The obtained results exhibit considerably good agreement with the experimental data within the experimental error The results of investigations of the temperature dependence of the BDCs show that this dependence can be fitted with a power law only at atmospheric pressure

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