Monday, 30 June 2014 14:20
I6-37: MOLECULAR MOTION DEMO - VAN DER WALLS FORCES
Additional Info
- ID Code: I6-37
- Purpose: Introduce the concept of attractive force between molecules.
- Description: A set of 9/32" steel balls models the air. The balls are set into motion by vibration of the walls with the device tilted. A weak magnet is placed at one end of the volume. If the velocity of the steel ball molecules is small enough some of the balls will stick to the magnet and to each other, representing condensation.
- Availability: Available
- References: REFERENCES: (PIRA 4D30.00)
Published in
I6 Kinetic Theory and Statistical Mechanics
Tagged under
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I6-01 GAS PRESSURE - MODEL
Illustrates the molecular nature of gas pressure
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I6-02: NITROGEN DIAMETER AND MEAN FREE PATH
Experimentally determine the diameter of the nitrogen molecule and to determine the order of magnitude of the mean free path… Read More
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I6-03 EQUIPARTITION OF ENERGY
Demonstrates equipartition of energy
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I6-11: BROWNIAN MOTION WITH TV
Demonstrates equipartition of energy
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I6-13: AIR TABLE - MODEL OF BROWNIAN MOTION
Simple model of Brownian motion. Read More
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I6-21 GAS DIFFUSION - MODEL
Models gas diffusion through a small hole
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I6-22: IODINE DIFFUSION TUBES
Demonstrate diffusion. Read More
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I6-23 DIFFUSION - FOOD COLOR IN WATER
Demonstrates diffusion
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I6-24: DIFFUSION VELOCITY
Show that the diffusion velocity is proportional to the RMS molecular velocity. Read More
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I6-25: DIFFUSION - DISTRIBUTION OF PING PONG BALLS
Demonstrate on a macroscopic scale using ping pong balls how random molecular motion causes substances to diffuse. Read More
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I6-31: MOLECULAR MOTION DEMO - BROWNIAN MOTION
Model Brownian motion. Read More
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I6-32: MOLECULAR MOTION DEMO - RANDOM MOTION IN GASES
Model random molecular motion. Read More
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I6-33: MOLECULAR MOTION DEMO - GAS PRESSURE
Model gas pressure. Read More
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I6-34: MOLECULAR MOTION DEMO - TEMPERATURE OF A GAS
Model gas pressure. Read More
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I6-35: MOLECULAR MOTION DEMO - DIFFUSION
Model gas diffusion. Read More
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I6-36: MOLECULAR MOTION DEMO - AVOGADRO'S HYPOTHESIS
Help justify Avogadro's hypothesis using a model. Read More
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I6-37: MOLECULAR MOTION DEMO - VAN DER WALLS FORCES
Introduce the concept of attractive force between molecules. Read More
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I6-38: MOLECULAR MOTION DEMO - BOYLE'S LAW
Model Boyle's law. Read More
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I6-39: MOLECULAR MOTION DEMO - CHARLES' LAW
Model Charles' law. Read More
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I6-40: MOLECULAR MOTION DEMO - SOLIDS
Model the behavior of solids. Read More
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I6-41: MOLECULAR MOTION DEMO - LIQUIDS
Model the behavior of liquids. Read More
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I6-51 ENTROPY - SORTING MARBLES
Demonstrates that increasing entropy requires less energy than decreasing entropy
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I6-52: ENTROPY - FOUR BALLS IN GAS DIFFUSION MODEL
Demonstrate that an ordered state is statistically possible. Read More
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I6-61: MAXWELL'S DEMON
Example of a "Maxwell Demon." Read More
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