Diffusion

Diffusion by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu)

The title of the Project: Diffusion

Purpose of the work:

• Identify what affects the rate of diffusion.

Practical part

This is a little instruction to the virtual experiment.

Part 1. Number of particles

Virtual experiment.

Step 1. Change the settings as shown in the photo.

Step 2. Set equal number of particles. Remove the divider and see how much time it takes for full diffusion. Use stopwatch.

Step 3. Increase the number of particles. Remove the divider and see how much time it takes for full diffusion. Use stopwatch. Compare to the previous results.

Step 4. Make a conclusion.

Part 2. Temperature

Virtual experiment.

Step 1. Increase the initial temperature. Remove the divider and see how the time changed. Use stopwatch. Compare to the previous results.

Step 2. Decrease the initial temperature. Remove the divider and see how the time changed. Use stopwatch. Compare to the previous results.

Step 3. Make a conclusion.

Conclusion

The rate of diffusion depends on the initial temperature, the higher the temperature the faster the diffusion goes. And it depends on the number of particles, the more particles the slower the diffusion takes place.