1. The problem statement, all variables and given/known data The rate of heat loss to the outside through a 10mm-thick glass roof of a green house is 120kW. The length and breadth of the glass material of the roof are 20m and 2m, respectively. Calculate the temperature of the outside if the temperature inside the green-house is 25 degrees C. Assume thermal conductivity of the glass material is 1.0W/m/degrees C. 2. Relevant equations dQ/dt = kA(dT/dx) 3. The attempt at a solution dQ/dt = 120000W, k = 1W/m/degree C, A = 20mx2m=40m^2 and dT/dx = (T-25degree C)/10mm = (T-25)/0.01m T = 55 degree C I'm not sure this is right, any help is much appreciated! Thanks in advance!