Explain why the equation for binary diffusion in gases (Eq. (17.28)] includes the term T^3/2/P, while the simple equation for thermal conductivity (Eq. (10.6)] has T^1/2 and no dependence on P. Both D_v and k are said to depend on the mean free path and the average molecular velocity.

Eq. 17.28

Eq. 10.6

Transcribed Image Text:

DAR 0.00185873/21(MA+MB)/MAMB]¹/2 POD (17.28)