Question: A hotel room is in thermal equilibrium with the rooms on either side and with the hallway on a third side. The room loses heat

A hotel room is in thermal equilibrium with the rooms on either side and with the hallway on a third side. The room loses heat primarily through a 1.30-cm-thick glass window that has a height of 76.2 cm and a width of 156 cm. If the temperature inside the room is 75°F and the temperature outside is 32°F, what is the approximate rate (in kJ/s) at which heat must be added to the room to maintain a constant temperature of 75°F? Ignore the stagnant air layers on either side of the glass.

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