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I4-17. Air Balloon On Liquid Nitrogen
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I4-17. Air Balloon On Liquid Nitrogen
Purpose
To demonstrate dramatically that the volume of vapor is greater than the volume of the same amount of liquid.
Equipment
Air balloon with styrofoam bucket of liquid nitrogen.
Images
Description
An air balloon is held on top of a liquid nitrogen bath. The volume of the air balloon decreases for two reasons: first, the volume of the gas shrinks according to Charles' law, and second, some of the air changes to liquid and shrinks considerably. Liquid nitrogen will readily cause oxygen to liquify, and even liquify some of the nitrogen in the balloon.
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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
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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