Hello, I have a test coming up and this is a question that will be on it...(adsbygoogle = window.adsbygoogle || []).push({});

The wall of a house is composed of solid concrete with outside brick veneer and is faced on the inside with fiberboard. The fiberboard width is 2 cm, the concrete width is 15 cm, and the brick width is 7 cm. If the outside T is -10 degrees, and the inside T is 20 degrees, how much E is conducted through the wall with dimensions 3.5mx5m in 1 hour?

I want to try something along the lines of k1A(T-T1)/d1=k2A(T2-T1)/d2 or something along those lines, but I know I have to use a T3, but I'm not sure how to find the third T. If you or anyone could help me set that up, that would be great.

I know to use the equation delta Q/ delta t= kAT/d but I also know I have to find the temperature between the brick and fiberboard. I just don't knwo how to find it. I've tried everything, so any clear guidance would save my day...

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# Homework Help: Heat Transfer problem need help !

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