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Lecture Demonstrations | |
Modern Physics |
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Q20: Helium Diffusion |
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Purpose: To demonstrate how quickly helium will diffuse. |
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Description: |
Place a paper bag or a suspended glass jar over the porous jar on the apparatus. Then pumping helium into the paper bag will cause water to flow out the spout because of the increased pressure due to helium diffusion. |
Equipment List: | Storage Location: CHEMP 130A |
Jar with water, two-hole rubber stopper, glass tube, porous jar, thistle tube | Not Currently Available | |
Helium |
References: |
Manual: None | Setup Notes: Q20 | PIRA #: |
Manufacturer(s): | Other school's Demonstration web pages |
Virginia Tech Physics | Lecture Demo List |