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Size: 1292
Comment:
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Size: 1768
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 7: | Line 7: |
| * '''Shelf:''' #3 | * '''Shelf:''' #1 |
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| ||apparatus||ME, Bay B1, Shelf #2|| || ||all other parts||ME, Bay B1, Shelf #2|| || ||...||ME, Bay B1, Shelf #2|| || ||Possible supplies that are needed||Rode and Tack Cabinet|| || ||...|| In Lecture Halls|| || ||...|| Stock Cabinet || || ||...|| Stock Cabinet || || |
||Bimetallic Strip||[:ThermoCabinetBayA3: TD, A3, Shelf #1]|| || ||Burner||location||<:> NA || ||Liquid nitrogen||location||<:> NA || ||Safety grove and glasses||location||<:> NA || |
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| 1. Make a Setup check list. 1. ... |
1. Install the burner. 1. Heat the bimetallic strip until it bends to one side. 1. Then, open the liquid nitrogen tank and put the bimetallic strip in the liquid nitrogen tank. 1. Take the bimetallic strip out of the liquid nitrogen tank and show students that it bends to the opposite side. |
| Line 31: | Line 31: |
| 1. List any Warnings.... 1. Demonstration may require practice. |
1. Beware of the burner and the liquid nitrogen. |
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| Insert description of demonstration, how is the demonstration preformed. | The bimetallic strip consists of brass and stainless steel. Since brass has higher thermal expansion coefficient than stainless steel. When it is heated by the burner, it bends to the stainless steel side. On the other hand, placed in liquid nitrogen (77K) the strip bends in opposite which is to the brass side. |
| Line 44: | Line 43: |
| 1. List any references | 1. [:www.hyperphysics.phy-astr.gsu.edu/hbase/thermo/bimetal.html: Hyperphysics] |
| Line 46: | Line 45: |
| [Insert a back link to main topic list] | [:ThermalProperties:Thermal Properties of Matter] |
Bimetallic Strip, 4A30.10
Location:
Cabinet: Thermodynamics Cabinet
Bay: (A3)
Shelf: #1
(attachment photo showing the fully set up demonstration)
Description:
Insert description of apparatus, its component, what it is demonstrating.
Equipment |
Location |
ID Number |
|
|
|
Bimetallic Strip |
[:ThermoCabinetBayA3: TD, A3, Shelf #1] |
|
Burner |
location |
NA |
Liquid nitrogen |
location |
NA |
Safety grove and glasses |
location |
NA |
Setup:
- Install the burner.
- Heat the bimetallic strip until it bends to one side.
- Then, open the liquid nitrogen tank and put the bimetallic strip in the liquid nitrogen tank.
- Take the bimetallic strip out of the liquid nitrogen tank and show students that it bends to the opposite side.
Cautions, Warnings, or Safety Concerns:
- Beware of the burner and the liquid nitrogen.
Demonstration:
The bimetallic strip consists of brass and stainless steel. Since brass has higher thermal expansion coefficient than stainless steel. When it is heated by the burner, it bends to the stainless steel side. On the other hand, placed in liquid nitrogen (77K) the strip bends in opposite which is to the brass side.
attachment other photos |
attachment other photos |
attachment other photos |
attachment other photos |
References:
- [:www.hyperphysics.phy-astr.gsu.edu/hbase/thermo/bimetal.html: Hyperphysics]
[:ThermalProperties:Thermal Properties of Matter]
[:Demonstrations:Demonstrations]
[:Instructional:Home]