Adiabatic Processes Concept

Demonstrations in Adiabatic Processes

Fire syringe with metal plunger and wooden handle, storage box, and small cleaning brushes
Safety

Fire Syringe

Demonstrates adiabatic compression by rapidly compressing air in a transparent cylinder to ignite tissue paper. Students see that mechanical work alone -- with no external heat source -- can raise …
Safety

Fog Flask

Demonstrates adiabatic cooling through cloud formation: rapid expansion of air in a flask drops the temperature below the dew point, and smoke particles serve as condensation nuclei for visible water …
Air track set up in front of a chalkboard with a glider on the track and a rubber band tether attached to a support stand; heavy brass glider on the table below

Adiabatic Compression on the Air Track

Mechanical analogy for adiabatic compression: a light glider ("gas molecule") bounces between the end of an air track and a heavy brass glider ("piston") tethered by rubber bands. As the …