Answered: A plane wall has a thickness of 55 cm… | bartleby

Related questions

Question

A plane wall has a thickness of 55 cm and is made of a material with a thermal conductivity of 45 W/m K.
The inside and outside surfaces of the wall are maintained at 40°C and 80°C, respectively. What is the
temperature inside the wall at a distance of 19 cm measured from the inside surface of the wall? Express
your answer in °C.

Expert Solution

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

An aluminum bar has a cross-section that is 4.31 cm by 7.32 cm and is 2.38 m long. Aluminum has a thermal conductivity of 205 W/m K. If the aluminum bar is used to bridge between ice at 0 °C and boiling water at 100 °C, what is the rate of heat transfer (in W) along the bar?
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. The temperature of the free end of the copper rod is held constant at 100°C, and that of the far end of the aluminum rod is held at 0°C. If the copper rod is 0.32 m long, what must be the length of the aluminum rod so that the temperature at the junction is 50°C? m
The thermal conductivities of human tissues vary greatly. Fat and skin have conductivities of about 0.20 W/m · K and 0.020 W/m · K respectively, while other tissues inside the body have conductivities of about 0.50 W/m · K. Assume that between the core region of the body and the skin surface lies a skin layer of 1.0 mm, fat layer of 0.50 cm, and 3.2 cm of other tissues. (a) Find the R-factor for each of these layers, and the equivalent R-factor for all layers taken together, retaining two digits. Rskin m2 · K/W Rfat m2 · K/W Rtissue m2 · K/W R m2 · K/W (b) Find the rate of energy loss when the core temperature is 37°C and the exterior temperature is 0°C. Assume that both a protective layer of clothing and an insulating layer of unmoving air are absent, and a body area of 2.0 m2. W
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. The temperature of the free end of the copper rod is held constant at 100°C, and that of the far end of the aluminum rod is held at 0°C. If the copper rod is 0.50 m long, what must be the length of the aluminum rod so that the temperature at the junction is 50°C?
A 0.0500-kg ice cube at −30.0°C is placed in 0.350 kg of 35.0°C water in a very well-insulated container. What is the final temperature in degrees Celsius?
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. The temperature of the free end of the copper rod is held constant at 100°C, and that of the far end of the aluminum rod is held at 0°C. If the copper rod is 0.42 m long, what must be the length of the aluminum rod so that the temperature at the junction is 50°C?
An aluminum cup with mass 0.56 kg holds 0.96 kg of water. Both the cup and the water have a temperature of 10.°C. If a 0.76-kg piece of copper at 53.°C is added to the cup, what is the final equilibrium temperature in °C? You may assume that the cup, water, and copper are well insulated from anything else.