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Size: 1328
Comment:
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Size: 1771
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 18: | Line 18: |
| ||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 || || |
||Burner||location||<:> NA || ||Liquid nitrogen||location||<:> NA || ||Safety grove and glasses||location||<:> NA || |
| Line 27: | Line 25: |
| 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. |
| Line 37: | Line 35: |
| 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. [:http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/bimetal.html: Hyperphysics] |
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:
[:http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/bimetal.html: Hyperphysics]
[:ThermalProperties:Thermal Properties of Matter]
[:Demonstrations:Demonstrations]
[:Instructional:Home]