Question

What is the relationship between molecular weight and rate of diffusion?

Answer 1

`U_(rms)=sqrt((3RT)/(MM))`

Explanation:

The rate of diffusion (`U_(rms)`) is given by:

`U_(rms)=sqrt((3RT)/(MM))`

Where MM is the molar mass of the gas.

Thus, when `MM` increases, the diffusion rate will decrease.