Question: 8 - 2 7 A square room 3 by 3 m has a floor heated to 3 0 0 K , a ceiling at 2

8-27 A square room 3 by 3 m has a floor heated to 300 K, a ceiling at 290 K, and walls
that are assumed perfectly insulated. The height of the room is 2.5 m. The emissivity
of all surfaces is 0.8. Using the network method, find the net interchange between
floor and ceiling and the wall temperature.

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