Question a picture window has dimensions of 140 m x 250m, Ask an Expert

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Question: A picture window has dimensions of 1.40 m x 2.50m and is made of glass 6.00mm thick. On a winter day, the outside temperature is -15.0?C , while the inside temperature is a comfortable 21.0°C .

Part A: At what rate is heat being lost through the window by conduction? Express your answer using three significant figures.

Part B: At what rate would heat be lost through the window if you covered it with a 0.750 mm-thick layer of paper (thermal conductivity 0.0500 W/m°K)? Express your answer using three significant figures.

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