1. The problem statement, all variables and given/known data A 0.8m high and 1.5m wide double pane window consisting of two 3mm thick layers of glass(k=0.78W/mK) is separated by a 10mm wide stagnant air space(k=0.026 W/mK). The convection heat transfer coefficients on the inner and outer surfaces of the window are 10W/m^2K and 35W/m^2K respectively. For a day when the room is maintained at 25oC while the temperature outdoors is 10oC, determine: i) the steady rate of heat transfer through this double pane window, and ii) the temperature of its inner surface. 2. Relevant equations Q=-k*A*ΔT/ΔX Rth=ΔX/(k*A) 3. The attempt at a solution i) Rth,glass=0.003/(0.78*0.8*1.5)*2 Rth,air=0.01/(0.026*0.8*1.5) Rth,total=2.549 W/m^2.K What should I do after this? And is it correct to calculate Rth,air like this? Thank you very much.