Experimental studies in gaseous systems

Studies on Dufour effect for a number of gases and gaseous mixtures have also been reported by Rastogi and Madan [11], Experimental set-up used for the measurement of Dufour effect is shown in Fig. 5.1. 

AT generated is 1°C. Values of thermal diffusion factor estimated and discussed are in agreement with kinetic theory as regards order. The value of calculated Soret coefficient from the data is also found to be in agreement as regards order with the experimental values obtained by other workers. 

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