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Heat
COMPOUND BAR
Compound bar is used to demonstrate unequal
expansion in different material on heating. Highlights the role of temperature
and materials in practical applications such as in thermostats.
| This is a correct compound
bar, in which two metals of unequal coefficient of expansion are used to
show unequal expansion. |
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Other compound bars use a laminated metal known
as bimetal. Although those are correct for usage, but are wrong to demonstrate
the principle of unequal expansion.
This bar consists of two metals, brass and
steel (iron), joined together by rivets end to end, fitted to a wooden handle.
On heating, the joined strips bend in a particular direction, thereby showing
unequal expansion.
Part#LC674
BALL AND RING
Ball and ring are used to demonstrate the
thermal expansion and contraction of metals when heated and cooled.
| The ball passes freely through
the ring when both are at the same temperature, but when the ball is
heated, it will not pass, thereby showing expansion and when it is allowed
to be cooled, it will again pass through the ring thereby showing
contraction. |
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Consists of a brass ball and a brass ring, each
individually mounted on brass rods with wooden handles.
Part#LC659
CONDUCTOMETER, 5 ROD FORM
Conductometer is used for demonstrating the
different heat conductivity of five metals by observing the melting of wax
placed on the ends of the bars.
| Consists of five rods (l x d),
75 x 5mm of aluminum, brass, iron, copper, and stainless steel which are
radially fitted on a brass disk of about 27mm diameter. Each of these rods
have a cavity at the outer end for holding paraffin wax. |
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The center disk is joined to an insulated
handle by 125mm long plated steel rod. Overall length about 32cm.
Part#AS3223
Calorimeter (Includes Glass Alcohol
Thermometer)
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This Calorimeter Set is designed for determining
specific heat, heat of fusion and heat of vaporization. The set consists
of two polished spun aluminum vessels, i.e. an inner calorimeter, 80 x 65 mm
(height x diameter) and an outer calorimeter, 140 x 100 mm (height x
diameter).
This set also includes a plastic ring, used as housing for the inner
calorimeter, a stirrer, and a plastic lid for the outer vessel and one of our
glass alcohol thermometers. The lid has two holes for the thermometer and
the stirrer. This set is perfect for the home science enthusiasts or the
professional scientists.
Part#CALMETGA |
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Where to buy?
Our products are available at the following
online stores. For large orders please call in advance and verify the
availability, wholesale discounts and shipping options. If you cannot find any
product in the online store of your choice, please use the search option of the
store or call (973)777-3113 for further assistance.
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