A picture window has dimensions 2.2 m x 1.5 m and is made of glass 5.8...
A picture window has dimensions 2.2 m x 1.5 m and is made of glass 5.8 mm thick. On a winter day the outside temperature is -13.0 °C while the inside temperature is 18.0 °C. The thermal conductivity of glass is 0.84 J/(s-m-°C) and the thermal conductivity of paper is 0.05 J/(s-m-°C). Determine the following.
EXAMPLE
Only need help with part C
| A. | The rate of heat loss through the window. (include units with answer) |
A: 14815 J/s |
| B. | The rate of heat loss through the window if the inside is
covered with a 0.75 mm thick piece of paper. (include units with answer) |
A: 4670 J/s |
| C. | The temperature at the interface between the window and the paper. (°C) |
Hint: Use the rate of heat loss for the entire system from part B with the R=L/K of the window to determine the temperature change from the outside or the R=L/K of the paper to determine the temperature change from the inside
Homework Answers
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A picture window has dimensions 2.2 m x 1.5 m and is made of
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