Burning Rate Depends on Oxygen Concentration
Description:
A) Cigarette is lit and placed in a long holder. Its burning rate is observed. It is then plunged into a 5L flask full of pure oxygen. It burns fast.
B) A lit cigarette is dropped into a beaker containing liquid oxygen. It burns very quickly.
C) A cigarette is soaked in liquid oxygen and placed in a holder. The cigarette is then lit. It burns very quickly.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Oxidation, Surface area, Combustion, Kinetics, Reaction rate
Rating: 
Hazard: Medium
- Burn hazard
- Flammability hazard
- Oxidizer
- Inhalation hazard
- Cryogenic burn hazard
- Asphyxiation hazard
- Implosion hazard
Effectiveness: Excellent
- Results are obvious without guidance
- Spectacular effects are seen by audience
- Close connection to course material
- High reliability
- Time to results is low
Difficulty: Medium
- Reaction at non-standard conditions
- Some concerted manipulations required
- Use of open flame
- Prior practice recommended
- Simple procedures
Safety Precautions:
- ABC fire extinguisher on hand
- Perform in well-ventilated area
- Eye protection required
- Thermal gloves required
- Fire resistant surface required
Class: Kinetics, Combustion, Oxidation-Reduction
Division: General
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