1. The problem statement, all variables and given/known data[/b the ends of a 20cm long,2cm diameter rod are maintained at 0degrees and 100degrees by immersion in an ice-water bath and boiling water. heat is conducted through the rod at 4.5x10^4J/h. of what material is the rod made? 2. Relevant equations Q/dt=k(A/L)dT 3. The attempt at a solution i first changed the heat energy conducted into watts which is = J/s 4.5x10^4J/h*1h/60min*1min/60s=12.5J/s then i found the surface area of the rod A=2(pi0.01^2)+(2pi0.01)0.2=0.01319m^2 now plug it into Q/dt=k(A/L)dT 12.5=k(0.01319)/0.2(100-0) k=1.895 with this number i found that the rod is made of ice which has a k value of 1.7 (the closest number) but i checked the back and it suppose to be iron which has a k value of 80.. what did i do wrong?