4B70.27 - Adiabatic Cooling - Fire Extinguisher
Video Credit: Jonathan M. Sullivan-Wood.
Place the bead thermocouple into the small hole drilled for it in the collar of the fire extinguisher. Secure this in place with a couple of zip ties. Observe the temperature as you discharge the fire extinguisher. The temperature should fall well below 0 degrees C.
- Jacques-Olivier Goussard and Bernard Roulet, "Free Expansion for Real Gases", AJP, Vol. 61, #9, Sep. 1993, p. 845.
- Julius Sumner Miller, Q81 & A81, Millergrams I – Some Enchanting Questions for Enquiring Minds, p. 52 & 104.
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