The heat flux (from outside to inside) across an insulating wall with – McqOptions

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1.	The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K = 0.04 W/m.°K and thickness 0.16m is 10 W/m2. The temperature of the inside wall is – 5°C. The outside wall temperature is___________________?
A.	25°C
B.	30°C
C.	35°C
D.	40°C
Answer» D. 40°C

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