Description

A single-pane window has dimensions of 2.5 m by 1.2 m and is 3 mm thick. The thermal conductivity of the glass is 0.78 W/(m·K). On a cold winter day, the temperature on the inside surface of the window is maintained at 23\deg C, while the outside surface temperature drops to -25\deg C. Calculate the heat loss through the window per hour.

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