Hey all: I am taking a Thermodynamics course and we are studying work and heat through surfaces (i.e. conduction, convection, and radiation). I was given an assignment and I am having trouble arriving at the correct answer. I have scanned the question and the works I have so far. I hope someone can help me with this. The question is: And here are my workings so far: I have solved for all of my resistances and I am pretty sure they are correct. I just don't know what to do with them after I have them. I know that: QTOTAL = QSIDES + QTOP + QBOTTOM = 200W I am just not sure how to extract the steady temperature from this. The answer in the back of the book is 45.6 degrees C. Some other people got 46.7 degrees, but I don't think they did it right? Anyways, any help would be greatly appreciated! Thanks!