There's a box with a wall in mid dividing it in two sections, each filled with same ideal gas in both sections at 150 K in one section and at 300 K in another. How am I supposed to calculate ratio of mean free paths (MFP)in 2 sections?
My attempt: MFP ~ Volume / Number of particles
=> MFP ~ Temperature / Pressure
Now, Assuming pressure to be same on both sections, ratio must be half. But that is incorrect. Why?