Heat Conductivities of Polyatomic Gases and Their Binary Mixtures
1963; AIP Publishing; Volume: 6; Issue: 8 Linguagem: Inglês
10.1063/1.1706866
ISSN2163-4998
AutoresA. N. G. Pereira, C. J. G. Raw,
Tópico(s)Chemical Thermodynamics and Molecular Structure
ResumoA hot-wire apparatus of the ``potential leads'' type has been used to determine the thermal conductivities of nitrogen, oxygen, nitric oxide and nitrous oxide, and the binary mixtures: N2O–N2, N2O–O2, N2O–NO and NO–N2, over the temperature range 30° to 200°C. Corrections were made for the various possible sources of error, and the final results are accurate to within 2%. The results for single gases are discussed in terms of the original Eucken formula, the diffusion-mechanism theory and the Mason-Monchick theory. The mixtures are treated in terms of the general Hirschfelder equation, and also by use of the Wassiljewa-type relation. In the latter case, the experimental Wassiljewa coefficients are compared with those calculated by the Mason-Saxena and Lindsay-Bromley approximate relations.
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