Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1


I5-12: ADIABATIC EXPANSION OF AIR - FOG IN BOTTLE 8 years 5 months ago #1352

  • zzfixk21
  • zzfixk21's Avatar Topic Author
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 1014
  • Karma: 1
  • Thank you received: 0

ID Code: I5-12
Purpose: Demonstrate adiabatic cooling of air
Description: A bottle containing a small amount of water is sealed by a stopper. A tube passes through the stopper and is attached to a bicycle tire pump which is pumped to pressurize the bottle. When the pressure rises to a sufficient level it blows the stopper off the bottle, allowing the air to expand adiabatically and cool. The cooling process condenses water vapor in the bottle, producing fog. If the stopper is quickly replaced and the pressure in the bottle increased, the air becomes warmer and the fog disappears. A small lamp illuminates the bottle to make the fog very visible, even in a large room.
Availability: Available

Please Log in to join the conversation.

  • Page:
  • 1
Time to create page: 0.088 seconds