Gases- Superheated Steam

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, Physical Chemistry

Division: General

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