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I4-18. Pulse Glass
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I4-18. Pulse Glass
Purpose
To illustrate change of phase between liquid and vapor in an confined fluid.
Equipment
Pulse glass.
Images
Description
Hold the pulse glass so that the bulbs point up, and enclose one bulb with your hand to warm it. The heat from your hand will change some of the liquid on that end to vapor, increasing the pressure in that end and forcing the liquid into the other end.
References
Julius Sumner Miller, Remarks on the Pulse Glass, AJP 25, 120 (1957). The Welch Scientific Company, Instructions for use of Nos. 1665 and 1665A Pulse Glasses.
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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