Boyle’s Law and the Mass of a Textbook
Effect of Pressure on the Size of a Balloon
Egg in a Flask – Thermal Decrease in Molar Volume
Flow of Gases Through a Porous Cup
Rate of Diffusion: The Ammonium Chloride Ring
Boltzmann: Digital Simulation of Kinetic Molecular Theory
Boyle’s Law and the Monster Marshmallow
PhET Simulation of Gas Behavior
Effect of Pressure Differences on a Balloon In a Flask
Extinguishing Candles With Carbon Dioxide
A Metal Bar to Demonstrate One Atmosphere
Relation of Gas Pressure and Temperature
Transport of Carbon Dioxide Through a Soap Film
Digital Molecular Theory Simulator
Using Liquid Nitrogen to Do Work
Superheated Steam
Description: Steam from a reservoir of boiling water is passed through a copper coil which is strongly heated by a Meker burner. The steam exiting the copper coil is hot enough to ignite a match or char paper.
This demonstration is available on video and JCE software “Chem Demos” laser disc.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1985 Vol: 2 Page: 93
Keywords: Superheating, Steam, Igniting match, Charring paper
Ratings:
Hazard: Medium
- Burn hazard
- Flammability hazard
- Electric shock hazard
Effectiveness: Good
- Clear contrast between behavior of systems
- Strong effects are seen by audience
- Results are clearly observable
- Moderate reliability
- Time to results is high
Difficulty: High
- Multi-step procedures
- Complex equipment manipulations
- Reaction at non-standard conditions
Safety Precautions:
- Thermal gloves required
- Eye protection required
- Use fire resistant surface
- Lab coat recommended
- ABC fire extinguisher on hand
- Use in well-ventilated area
- Use UL approved three prong plug and outlet.
Class: Gases, Intermolecular Forces
Division: General
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