1. The problem statement, all variables and given/known data Consider the slab shown in Fig. 18-18. Suppose that L 25.0 cm, A 90.0 cm2, and the material is copper. If TH 125 C, TC 10.0 C, and a steady state is reached, find the conduction rate through the slab. 2. Relevant equations Pcond = Kc *A*(TH - TC)/L K = 401 W/m*k 3. The attempt at a solution I'm converting degrees celsius to kelvin so that it cancels with the kelvin unit from the conductivity K and I'm getting an answer of 5774W but when I look here http://www.chegg.com/homework-help/...0-cm2-material-copper-th-103-c-tc-80-c-q43179 and here http://www.chegg.com/homework-help/...50-cm-860-cm2-material-copper-th-124-q4982672 they are leaving the degrees in celsius. What's more, the answer in the back of my book matches these answers! How can an answer in celsius over kelvin make any sense!? Is the answer in the back of the book also wrong?!