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Your firm has designed a new 2m​ double-paned window which consists of two 5 mm thick...

Your firm has designed a new 2m​ double-paned window which consists of two 5 mm thick plates of glass (​k​ = 0.75 W/mK) separated by a 14 mm thick layer of xenon gas with an unknown thermal conductivity, which you intend to determine through an experiment. You use a heater that provides 100 W of heat to maintain one side of the window at 80 °C while the other 2​ side is exposed to the air in the room with ​T​ = 20 °C (​h​ = 15 W/m​ K). ∞​

(a) Determine the thermal conductivity of the xenon layer

(b) Determine the temperature of the surface of the glass exposed to the room air in your experiment

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