How would you define diffusion in terms of the particles of a gas?

Aug 25, 2016

Diffusion of gases is the process of two gases mixing together.

Explanation:

Diffusion of gases is the process of two gases mixing together.

The diffusion ratio could be measured by the distance traveled by each particles, which depends on the velocity of the gas.

The root mean square velocity (${U}_{r m s}$) of a gas depends on temperature ($T$) and its molar mass ($M M$) and it is given by the following expression:

${U}_{r m s} = \sqrt{\frac{3 R T}{M M}}$

The diffusion rate of two gases $A \text{ and } B$ can be written as:

("Distance traveled by A")/("Distance traveled by B")=sqrt(((color(red)(cancel(color(black)(3RT))))/(MM_A))/((color(red)(cancel(color(black)(3RT))))/(MM_B)))=sqrt((MM_B)/(MM_A)