3. Consider a 0.80 m high and 1.50 m wide double-pane window consisting of two 4 mm thick layers of glass (k = 0.78 W/m-K) separated by a 10 mm wide stagnant air space (k = 0.026 W/m-K). Assume the room is maintained at 20C while the temperature of the outdoors is -10C. Take the convection heat transfer coefficients of the inner and outer surfaces of the windows to be houter = 10 W/m-C and hinner = 40 W/m-C (including radiation effects). a. Determine the equivalent thermal resistance through the window, including the convection resistances (C/W) b. Determine the steady rate of heat transfer through the window. (W) c. Determine the temperature of the inner surface. (C)