A wall of thickness 0.6 m has a normal area 1.5 m2 and is made up of material of thermal conductivity 0.4 W/mK. The temperature on the two sides are 800°C and 100°C. What is the thermal resistance of the wall?

A wall of thickness 0.6 m has a normal area 1.5 m2 and is made up of m

1.	A wall of thickness 0.6 m has a normal area 1.5 m2 and is made up of material of thermal conductivity 0.4 W/mK. The temperature on the two sides are 800°C and 100°C. What is the thermal resistance of the wall?
A.	1 W/K
B.	1.8 W/K
C.	1 K/W
D.	1.8 K/W
Answer» D. 1.8 K/W

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A wall of thickness 0.6 m has a normal area 1.5 m2 and is made up of material of thermal conductivity 0.4 W/mK. The temperature on the two sides are 800°C and 100°C. What is the thermal resistance of the wall?

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