Question

Define mean free path and derive an expression for it. ​

Answer 1

Answer:

Mean free path, average distance an object will move between collisions

The mean free path is the distance that a molecule travels between collisions. ... The criterion is: λ (N/V) π r2 ≈ 1, where r is the radius of a molecule.

Answer 2

Answer:

mean free path , average distance an object will move between collision

Explanation:

the mean free path is the distance that a molecul travels between collision

the critertion is a (N/V) π r2 = 1, where r is the radius of a molecul