Question

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 is the steady-state temperature of

(a) the copper – aluminum junction?

(b) the aluminum– brass junction?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Rod 1, with a thermal conductivity of 373 W/m·K, rod 2, with a thermal conductivity of...
Rod 1, with a thermal conductivity of 373 W/m·K, rod 2, with a thermal conductivity of 292 W/m·K, and rod 3, with a thermal conductivity of 112 W/m·K, are placed end to end with rod 2 between the other two. The rods have the same length and the same diameter. The free end of rod 1 is maintained at water's boiling point, and the free end of rod 3 is maintained at water's freezing point. What is the steady-state temperature...
A brass rod and a lead rod, each 0.250 mm long and each with cross-sectional area...
A brass rod and a lead rod, each 0.250 mm long and each with cross-sectional area 2.00×10−4m22.00×10−4m2, are joined end to end to make a composite rod of overall length 0.500 mm. The free end of the brass rod is maintained at a high temperature, and the free end of the lead rod is maintained at a low temperature. The temperature at the junction of the two rods is 185.0∘C∘C and the heat current due to conduction through the composite...
A heat-conducting rod, 0.90 m long and wrapped in insulation, is made of an aluminum section...
A heat-conducting rod, 0.90 m long and wrapped in insulation, is made of an aluminum section that is 0.20 m long and a copper section that is .70m long. Both sections have a cross-sectional area of .000040m2. The aluminum end and the copper end are maintained at temperatures of 30 degrees C and 230 degrees C respectively. The thermal conductivities of aluminum and copper are 205 W/m ∙ K (aluminum) and 385 W/m ∙ K (copper). What is the temperature...
An aluminum-alloy rod has a length of 5.7276 cm at 18.00°C and a length of 5.7553...
An aluminum-alloy rod has a length of 5.7276 cm at 18.00°C and a length of 5.7553 cm at the boiling point of water. (a) What is the length of the rod at the freezing point of water? (b) What is the temperature if the length of the rod is 5.7621 cm?
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...
1) A cylindrical copper rod of length 2 m and cross-sectional area of 5 cm^2 is...
1) A cylindrical copper rod of length 2 m and cross-sectional area of 5 cm^2 is insulated to prevent heat loss through its surface. The ends are maintained at a temperature difference of 100 C by having one end in a water-ice mixture and the other in a boiling water/steam mixture. If you initially have 10 g of ice on the one end and lots of steam on the other, how long does it take to melt the ice? 2)...
An aluminum rod with a square cross section is 2.0 m long and 6.6 mm on...
An aluminum rod with a square cross section is 2.0 m long and 6.6 mm on edge. (a) What is the resistance between its ends? (b) What must be the diameter of a cylindrical copper rod of length 2.0 m if its resistance is to be the same as that of the aluminum rod? The resistivity of aluminum is 2.75 × 10-8 Ω·m and the resistivity of copper is 1.69 × 10-8 Ω·m.
2.1Consider a solid cylindrical rod of length 0.15 m and diameter 0.05 m. The top and...
2.1Consider a solid cylindrical rod of length 0.15 m and diameter 0.05 m. The top and bottom surfaces of the rod are maintained at constant temperatures of 20oC and 95oC, respectively, while the side surface is perfectly insulated. 2.1.1 Draw a diagram to represent the situation described above. (3) 2.1.2 Determine the rate of heat transfer through the rod if it is made of copper, k = 380 W/m? oC. (4) 2.1.3 Determine the rate of heat transfer through the...
A copper rod has a length of 4 meters, and its sectional area it is 5...
A copper rod has a length of 4 meters, and its sectional area it is 5 x 10^-4 m^2. Heat enters through the left end of the rod and exits through the rightmost. Copper has a thermal conductivity of 386 W / m ° C. If the heat flux through the rod is 2400 W, determine the difference in temperatures at the two ends.
An insulated copper wire with a length of 1.2 m carries 20 A of current. The...
An insulated copper wire with a length of 1.2 m carries 20 A of current. The copper is 1 mm in diameter and the insulation (k=0.13 W/m. ºC) has a thickness of 0.8 cm. The wire has electrical resistance of 0.0321 Ω. Air at 25 ºC blows in crossflow over the wire to produce an external convective heat transfer coefficient of 219 W/m2. K. Assuming the copper is isothermal, find the copper temperature. Take the electrical resistivity of copper to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT