A 10.0 m2 area wall is constructed of three layers. The first layer is 2.00 cm thick and has a thermal conductivity 0.500 W/m?K

The second layer is 15.0 cm thick and has a thermal conductivity 0.100 W/m?K. The third layer is 3.00 cm thick and has a conductivity 1.00 W/m?K. How much heat flows through this wall per hour if one side of the wall is at 20.0°C and the other side is at 0.00°C?
A)

3.22 × 105 J

B)

1.73 × 105 J

C)

4.59 × 105 J

D)

1.14 × 105 J

E)

2.68 × 105 J


C

Physics & Space Science

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