Thermochemistry- Evaporation of Ether is Endothermic

Evaporation of Ether is Endothermic

Description: Diethyl ether is squirted on a towel wrapped around the bulb of an air thermometer. The temperature drops as the ether evaporates.

Source: UW Card Catalog

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

Keywords: Diethyl ether, Air thermometer, Evaporation, Endothermic

Rating:

Hazard: Medium

  • Asphyxiation hazard
  • Inhalation hazard
  • Flammability hazard
  • Mild explosion hazard
  • Acute toxicity hazard – oral
  • Specific organ toxicity – single exposure, central nervous system
  • Chronic aquatic toxicity

Effectiveness: Average

  • Results are observable with guidance
  • Mild effects are seen by audience
  • Good connection from demo to course material
  • Contrast between systems behavior is noticeable
  • Time to results is high
  • Good reliability

Difficulty: Medium

  • Simple procedures
  • Simple manipulations for most to perform
  • Handling of organic chemicals
  • Exposure to potential toxicity

Safety Precautions:

  • Downdraft hood required
  • Eye protection required
  • Gloves required
  • Perform in a well-ventilated area required
  • ABC fire extinguisher on hand
  • Absorbent material on hand
  • Prevent release of reagents to the environment

Class: Intramolecular Forces, Thermodynamics

Division: General