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I6-21. Gas Diffusion - Model
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I6-21. Gas Diffusion - Model
Purpose
To model the diffusion of gas molecules through a small hole.
Equipment
Diffusion Model.
Images
Description
White ping pong balls on one side and colored ping pong balls on the other side of a plastic sheet barrier are agitated by a motor which rotates the bottom of the model. Opening a small hole in the plastic barrier between the two sections allows some of the balls to "diffuse" from one side to the other.
References
Roger A. Key and B. D. DePaola, Apparatus for Teaching Physics: A Simple Apparatus for Demonstration of Gaseous Diffusion, TPT 29, 522-523 (1991).
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See pagesi1. thermal properties of matter
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See pagesi2. transfer of heat
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See pagesi3. gases
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See pagesi4. changes of state
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See pagesi5. laws of thermodynamics
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See pagesi1. thermal properties of matter
-
See pagesi2. transfer of heat
-
See pagesi3. gases
-
See pagesi4. changes of state
-
See pagesi5. laws of thermodynamics
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Physics Lab Demos