Thermochemistry- Comparing the Specific Heats of Metals II

Comparing the Specific Heats of Metals II

Description: Equal masses of metals are placed in boiling water, and the temperatures allowed to equilibrate. The hot metals are placed on a track of beeswax and allowed to run down the track, melting the wax as they go. The metal with the higher specific heat capacity goes farther down the track.

Source: UW Card Catalogue

Year: N/A Vol: N/A Page: N/A

Keywords: Beeswax, Specific heat capacity, Metals, Melting

Rating:

Hazard: Some

  • Electric shock hazard
  • Burn hazard
  • Scalding hazard
  • Acute toxicity hazard
  • Reproductive toxicity hazard
  • Carcinogenicity hazard

Effectiveness: Good

  • Good connection to course material
  • Time to results is high
  • Good reliability
  • Results are observable with guidance
  • Mild effects are seen by audience

Difficulty: Medium

  • Sequential manipulations required
  • Use of heated weights
  • Some intermediate steps to results
  • Demos at non-standard conditions

Safety Precautions:

  • Eye protection required
  • Chemical gloves required
  • Absorbent material required
  • Use of UL approved three-prong plug and outlet
  • Perform in a well-ventilated area

Class: Physical Properties, Solid State Chemistry

Division: General, Material Science Chemistry

 

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