Diffusion of Gases in a Tube

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

This Demonstration shows the diffusion of two gases from opposite ends of a tube. The root mean square velocity of a gas is given by , where is the gas constant 8.314 J/mol K, is the temperature in K and is the molecular weight in kg/mol. The temperature is set at 298 K to show diffusion under standard conditions. This Demonstration shows how the molecules of gas 1 and gas 2 diffuse toward each other and intermingle in a one-meter tube. You can select from several diatomic and noble gases.

Contributed by: Paige Baal and Nikit Kapila (March 2017)
Additional contributions by: Eitan Geva (University of Michigan)
Open content licensed under CC BY-NC-SA


Submission from the Compute-to-Learn course at the University of Michigan.


Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.