Question

A certain material has a thermal conductivity of 0.90 W/(m oC). If the area of a...

A certain material has a thermal conductivity of 0.90 W/(m oC). If the area of a wall made of the material is 20 m2, the thickness of the wall is 0.6 m, and the heat transfer through that wall by conduction is 400 W, what is the temperature difference between the surfaces of the wall? Give your answer in terms of oC . (Enter the number only -- do not include the units in your answer.)

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The thermal conductivity of a sheet of rigid,extruded insulation is k = 0.020 W/(m*K). The measured...
The thermal conductivity of a sheet of rigid,extruded insulation is k = 0.020 W/(m*K). The measured temperature difference across a 30-mm-thick sheet of the material is T1-T2=10 C. a.) Assuming 1-D, steady state conditions withouth thermal energy generation in the material, what is the heat flux through a 2 m x 3 m sheet of the insulation? b.) What would be the effect on the rate of heat transfer through the sheet if a material with a relatively higher thermal...
Consider a cube of density, specific heat, and thermal conductivity of 2700 kg/m3, 0.896 kJ/kg-K, and...
Consider a cube of density, specific heat, and thermal conductivity of 2700 kg/m3, 0.896 kJ/kg-K, and 204 W/m-K, respectively. The cube is 5 cm in length, and is initially at a temperature of 20 oC. For t>0, two of the boundary surfaces are insulated, two are subjected to uniform heating at a rate of 10,000 W/m2, and two dissipate heat by convection to an ambient temperature of 20 oC, with a heat transfer coefficient of 50 W/m2-K. Assuming lumped capacitance...
A wall in a house contains a single window. The window consists of a single pane...
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.15 m2 and whose thickness is 1.9 mm. Treat the wall as a slab of the insulating material Styrofoam whose area and thickness are 15.00 m2 and 0.110 m, respectively. Heat is lost via conduction through the wall and the window. The temperature difference between the inside and outside is the same for the wall and the window. Of...
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...
8. A copper bar of thermal conductivity 401 W/(m·K) has one end at 117°C and the...
8. A copper bar of thermal conductivity 401 W/(m·K) has one end at 117°C and the other end at 24.0°C. The length of the bar is 0.120 m, and the cross-sectional area is 1.00 × 10−6 m2. If two such bars were placed in series (end to end) between the same constant-temperature baths, what would the rate of heat conduction  PP be?
consider a 0.8 cm thick steel plate with a thermal conductivity of 50W/m-k.When the inside surface...
consider a 0.8 cm thick steel plate with a thermal conductivity of 50W/m-k.When the inside surface of the plate is subjected to a uniform heat flux 0f 5*104 w/m2 the oter surface temperature of the plate is measured to be 110c under steady operating condition a)express the differential equation and the boundary conditions for steady one dimensional heat conduction through the wall b)obtain the relation for the variation of temperature in the plate by solving the differential equation. c)evaluate the...
A fin of rectangular profile has a thermal conductivity of 14 W/m C, thickness of 2.0...
A fin of rectangular profile has a thermal conductivity of 14 W/m C, thickness of 2.0 mm, and length of 23 mm. The base of the fin is maintained at a temperature of 220 o C while the fin is exposed to a convection environment at 23 o C with h=25 W/m2 o C. Calculate heat lost per meter of fin depth for the three tip conditions. (a) Convection, (b) Adiabatic, and (c) T (x=L) = 23 o C.
(Heating Transfer) - A wall with a heat transmission coefficient of 2 W / mK; thickness,...
(Heating Transfer) - A wall with a heat transmission coefficient of 2 W / mK; thickness, width and height values ​​are all 1 m (wall thickness 1 m and heat transfer area 1 mx 1 m = 1 m ^ 2) In the continuous regime, the relevant wall with inner surface temperature of 2000 K and outer surface temperature of 1000 K , unit Calculate the heat passing in time. (Admissions: one dimensional heat conduction and constant heat conduction coefficient...
Uniform area, heat transfer problem A stove's walls are made up of a flat inner insulating...
Uniform area, heat transfer problem A stove's walls are made up of a flat inner insulating board 0.01m thick (thermal conductivity: 0.2 W m-1K-1) and a flat outer steel sheet 0.01m thick (thermal conductivity: 26 W m-1K-1). A mineral-wool (thermal conductivity: 0.065 W m-1K-1) is placed between these sheets. The inside temperature of the wall is 773K, how thick does the insulation have to be to maintain the outside wall temperature at 323K ? Assume that the ambient air temperature...
A Parabolic trough concentrator with width of 3 m and length of 25 m has an...
A Parabolic trough concentrator with width of 3 m and length of 25 m has an absorbed solar radiation per unit area of aperture of 600 W/m2. The receiver is a cylinder with an emittance of 0.3 and is surrounded by an evaluated glass cylindrical envelope. The absorber has a diameter of 50 mm and the transparent envelope has an outer diameter of 100 mm with a thickness of 5 mm. The collector is designed to heat a fluid entering...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT