The cross-section of an exterior wall of a house is shown below. The wall consists of a 2.5 cm thick plaster (k=0.20 W/m.C) in contact with the interior surface, insulation material 9 cm thick (k=0.038 W/m.C), and a 1.25 cm thick counterplate (0.12 W/m.C) on the outer side. The temperature of the air in contact with the wall inside is 20C, with a heat transfer coefficient of 10 W/m.C, and outside air temperature is -10C, with a heat transfer coefficient of 20 W/m. C. Based on this information, determine the temperatures of the inner surface, outer surface, and interface of the wall. Also, find the amount of heat passing through the wall. (Assume one-dimensional heat transfer across the wall thickness.) plaster insulation material counterplate outer surface interior surface 2.5 cm 9cm 1.25 cm