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I4-33. Cryophorus
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I4-33. Cryophorus
Purpose
To illustrate freezing caused by cooling by evaporation.
Equipment
Cryophorus, styrofoam bucket of liquid nitrogen.
Images
Description
Insert the lower end of the cryophorus into a liquid nitrogen bath, with the water in the sphere at the upper end. The liquid nitrogen will reduce the pressure inside the tube, causing evaporation of some of the water from the upper sphere. After sufficient cooling during the evaporation process, the remaining water in the upper sphere freezes.
References
Welch Scientific Company, Instructions for use of Cat. No. 1667 Cryophorus.
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See pagesi1. thermal properties of matter
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See pagesi2. transfer of heat
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See pagesi3. gases
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See pagesi4. changes of state
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See pagesi5. laws of thermodynamics
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See pagesi1. thermal properties of matter
-
See pagesi2. transfer of heat
-
See pagesi3. gases
-
See pagesi4. changes of state
-
See pagesi5. laws of thermodynamics
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Physics Lab Demos