QUESTION 9 During the video on heat conduction, H through a single pane window was calculated. Now, consider a window that has two panes with a 6 mm air gap between them. Each pane has an area of 1.9 m. The window separates the inside of a house at 22 °C from the outside at 0°C. Let Kair = 0.03 W/(m-K). Hint: This problem can be simplified by noting that the thermal conductivity of glass is much greater than air, so the effect of the glass on the total conductivity can be ignored. Therefore, the purpose of the two glass panes is to support the layer of air between them. Calculate the heat current H through the double glass pane window in watts. Do not include units in your answer and state your numerical answer in normnal form.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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QUESTION 9
During the video on heat conduction, H through a single pane window was calculated. Now, consider a window that has
wo panes with a 6 mm air gap between them. Each pane has an area of 1.9 m. The window separates the inside of a
house at 22 °C from the outside at 0°C. Let Kair = 0.03 W/(m-K).
Hint: This problem can be simplified by noting that the thermal conductivity of glass is much greater than air, so the
effect of the glass on the total conductivity can be ignored. Therefore, the purpose of the two glass panes is to support
the layer of air between them.
Calculate the heat current H through the double glass pane window in watts.
Do not include units in your answer and state your numerical answer in normal form.
QUESTION 10
Consider process 3 in the figure below (or in First_Exam_Figures.pdf) shown by the bold solid line with an arrowhead.
The pressure of a gas is decreased at constant volume.
V.
Click Save and Submit to save and submit. Click Save All Ansuers to save all answers.
28°F
Transcribed Image Text:QUESTION 9 During the video on heat conduction, H through a single pane window was calculated. Now, consider a window that has wo panes with a 6 mm air gap between them. Each pane has an area of 1.9 m. The window separates the inside of a house at 22 °C from the outside at 0°C. Let Kair = 0.03 W/(m-K). Hint: This problem can be simplified by noting that the thermal conductivity of glass is much greater than air, so the effect of the glass on the total conductivity can be ignored. Therefore, the purpose of the two glass panes is to support the layer of air between them. Calculate the heat current H through the double glass pane window in watts. Do not include units in your answer and state your numerical answer in normal form. QUESTION 10 Consider process 3 in the figure below (or in First_Exam_Figures.pdf) shown by the bold solid line with an arrowhead. The pressure of a gas is decreased at constant volume. V. Click Save and Submit to save and submit. Click Save All Ansuers to save all answers. 28°F
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