319-321] 



Conduction of Heat 



267 



Comparison with Experiment. 



321. This relation between S- and K is found to be in excellent agreement 

 with experiment. This is shewn in the following table : 



RATIO OF tcC v TO &. 



From these figures it will be seen that the agreement between theory 

 and observation is in every way as good as could be expected. The mean of 

 the entries in the last column is T65, which is in excellent agreement with 

 the theoretical number 1'6027. And we shall see later that the discrepancy, 

 small though it is, is such as could reasonably be attributed to the inter- 

 molecular forces in the gas. 



* Authorities : 1 Winkelman, 2 Graetz (Meyer, Kinetic Theory, p. 295), 3 Wiillner 

 (Meyer, p. 293). 



