Question
A wall is built of two metals (copper and aluminum) that are in thermal contact with...
A wall is built of two metals (copper and aluminum) that are in thermal contact with each other. The temperature difference across the entire wall is 38.058 K and across the aluminum sheet it is 25.08 K. If the copper sheet is 2.585 cm thick, how thick is the aluminum sheet? Answer should be in cm
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
One mole of copper at a uniform temperature of 20°C is placed in thermal contact with...
One mole of copper at a uniform temperature of 20°C is placed in
thermal contact with a second mole of copper which, initially, is
at a uniform temperature of 150°C. Calculate the temperature of the
two-mole system, which is contained in an adiabatic enclosure, when
thermal equilibrium is attained. Why is the common uniform
temperature not exactly 85°C? How much heat is transferred and how
much entropy is produced by the transfer?
Two rooms, each a cube 4.0 mper side, share a 14-cm thick brick wall. Because of...
Two rooms, each a cube 4.0 mper side, share a 14-cm thick brick
wall. Because of a number of 100-W lightbulbs in one room, the air
is at 34 ∘C, while in the other room it is at 10 ∘C.
How many of the 100-W bulbs are needed to maintain the
temperature difference across the wall?
Express your answer as an integer.
A copper rod, an aluminum rod, and a brass rod, each of 6.00 m length and...
A copper rod, an aluminum rod, and a brass rod, each of 6.00 m
length and 1.00 cm diameter, are placed end to end with the
aluminum rod between the other two. The free end of the copper rod
is maintained at water’s boiling point, and the free end of the
brass rod is maintained at water’s freezing point. We know that
??????? = 401 W⁄m. K , ????????? = 235 W⁄m. K and ?????? = 109 W⁄m.
k. What...
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal...
A 100 g aluminum calorimeter contains 250 g of water. The two
substances are in thermal equilibrium at 10°C. Two metallic blocks
are placed in the water. One is a 50 g piece of copper at 82°C. The
other sample has a mass of 78 g and is originally at a temperature
of 100°C. The entire system stabilizes at a final temperature of
20°C. Determine the specific heat of the unknown second sample.
A sheet of aluminum weighing 100.0 g and at a temperature of 50.0 C is placed...
A sheet of aluminum weighing 100.0 g and at a temperature of
50.0 C is placed in contact with a piece of copper weighing 100.0 g
and at a temperature of 100.0 C.
1) What do you expect to happen? Which metal is going to get
warmer? Why? If you did not have a thermometer on the blocks, what
visual cue would let you know one is hottter than the other?
2) Will the final temperature just be average of...
At what temperature will aluminum have a resistivity that is two times the resistivity of copper...
At what temperature will aluminum have a resistivity that is two
times the resistivity of copper at room temperature?
The answer is 72.74 degrees Celsius but I am not sure how to get
to that answer. Assume room temp is 20 degrees celsius.
A Physics 4C student team is doing a thermal experiment where they have two rods of...
A Physics 4C student team is doing a thermal experiment where
they have two rods of different materials. One rod is made of
cooper and the other brass. They are joined together. The brass
section has a length of 0.355 m. The copper section a length of
0.750 m. Each segment has cross-sectional area of 0.00475 m^2.
Boiling water is in contact with the free end of the brass rod
while the free end of the copper is in contact...
Two copper blocks, each of mass 1.74 kg, initially have different temperatures,t1 = 18° C and...
Two copper blocks, each of mass 1.74 kg, initially have
different temperatures,t1 = 18° C and
t2 = 30° C. The blocks are placed in contact
with each other and come to thermal equilibrium. No heat is lost to
the surroundings.
(a) Find the final temperature of the blocks.
°C
Find the heat transferred between them.
J
(b) Find the entropy change of each block during the time interval
in which the first joule of heat flows.
?S1
= J/K...
Consider a large uranium plate of thickness 5 cm and thermal conductivity k = 28 W/m...
Consider a large uranium plate of thickness 5 cm and thermal
conductivity k = 28 W/m K in which heat is generated uniformly at a
constant rate of q˙ = 6 × 10^5 W/m^3 . One side of the plate is
insulated while the other side is subjected to convection in an
environment at 30◦C with a heat transfer coefficient of h = 60 W/m2
K. Considering six equally spaced nodes with a nodal spacing of 1
cm,
(a) Sketch...
You have a block of ice at 32 degrees F, and a block of copper at...
You have a block of ice at 32 degrees F, and a block of copper
at some other temperature. The blocks have equal mass. Exactly the
same amount of heat is added to each block. This causes the ice to
melt completely, but not to warm up past 32 degrees F. The copper
stays well below its melting point.
How much does the copper expand?
(Express your answer as a percentage, e.g. "the length of the
copper increases by 1%.")...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 3 minutes ago
asked 33 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago
asked 2 hours ago