Answer to Question #52204 in Molecular Physics | Thermodynamics for ravish

Question

a) What do you understand by mean free path of gas molecules? Derive an expression for the law of distribution of free paths. (1,4)
b) What is Brownian motion? Give three examples of such a motion. Using Einstein’s theory, obtain an expression for Einstein’s formula for mean square displacement of a Brownian particle. (2,3,5)
c) What is the transport phenomenon in gases? Obtain an expression for coefficient of viscosity of a gas if the average number of molecules crossing an area is given by vnn41=∆ and molecules make their last collision before crossing an imaginary surface at a distance of λ32above or below it.