- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
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).
I. Thermodynamics
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See pages i1. thermal properties of matter
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See pages i2. transfer of heat
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See pages i3. gases
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See pages i4. changes of state
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See pages i5. laws of thermodynamics
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I. Thermodynamics
-
See pages i1. thermal properties of matter
-
See pages i2. transfer of heat
-
See pages i3. gases
-
See pages i4. changes of state
-
See pages i5. laws of thermodynamics
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