Balloon Full of Carbon Dioxide
Effect of Pressure on Melting Point of Ice
The Liquid Phase of Carbon Dioxide
Vapor Pressure of Pure Liquids
Boiling Acetone at a Reduced Pressure
Magic Sand Models the Hydrophobic Effect
Surface Tension: Floating Duck
Surface Tension of Water: The Floating Paper Clip
Will Tissue Hold Water? Interfacial Tension
Computer NaCl Crystal Cleavage
Variation of Volume of Water With Temperature
Surface Spreading and Surface Tension
Gel Formation with Sodium Alginate and Calcium Chloride
Boiling Acetone or Water at Room Temperature
Density of Sulfuric Hexafluoride and Sublimation of Certain Gases
Boiling Acetone or Water at Room Temperature
Description: A sample of water or acetone is placed in a round bottom flask with few glass beads or boiling chips. The flask is connected to a Vacuum pump, and the gas is removed from the flask, lowering the pressure. After a few minutes, the liquid begins to boil.
Source: UW Card Catalog
Year: 1991 Vol: N/A Page: N/A
Keywords: Boiling, Water, Acetone, Room Temperature, Vacuum, Vaporization, Phase Change
Rating:
Hazards: Medium
- Flammable liquids
- Eye Irritation
- Specific target organ toxicity – single exposure – CNS
- Electric shock hazard
- Implosion hazards
Effectiveness: Average
- Observable with guidance
- Moderate reliability
- Time to results is medium
- Good connection to course material
- Contrast between behavior of systems is low
Difficulty: Medium
- Demos at conditions other than standard
- Intermediate steps to results
- Possible use of toxic substances
- Simple manipulations
Safety Precautions:
- Eye protection required
- Gloves required
- Avoid exposure to mists, droplets, or vapors
- ABC fire extinguisher on hand
- Do not expose to open flames
- Absorbent materials on hand
Class: Intermolecular Forces
Division: General
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