Bimetallic Strip, 4A30.10a

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.

Setup:

1. Make sure that you have all apparatuses in the table above.
2. Install the burner gas tube with the gas source.
3. Make sure that you have the gas switch off and in the right pressure that you want before you turn it on.

Cautions, Warnings, or Safety Concerns:

1. Beware of the burner and the liquid nitrogen.

Demonstration:

The bimetallic strip consists of brass and stainless steel. Since brass has higher thermal [http://en.wikipedia.org/wiki/Coefficient_of_thermal_expansion expansion coefficient] than stainless steel. When it is heated by the burner, it bends to the stainless steel side. On the other hand, placed it in liquid nitrogen (77K) the strip bends in opposite which is to the brass side.

References:

1. [http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/bimetal.html Hyperphysics]

[:ThermalProperties:Thermal Properties of Matter]

[:Demonstrations:Demonstrations]

[:Instructional:Home]