Abstract

The fractional change of the longitudinal coefficient of heat conductivity, (Δλ⊥/λ), due to a magnetic field applied normal to the temperature gradient in a hot-wire thermal conductivity cell, has been studied for the NO–N2 and NO–H2 mixtures at different concentrations. The contribution, to (Δλ⊥/λ), of the Senftleben–Beenakker effect in the diamagnetic gas (N2 or H2) has been observed at the higher values of applied H/p, where H is the strength of the magnetic field, and P, pressure. Neglecting this feature, we have interpreted the results by applying an extension of Köhler and Raum’s theory. The relevant effective cross sections have also been evaluated from the experimental data.

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