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Home Q & A Board Science-Related Homework Help Physics
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hockeyguy9 hockeyguy9
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6 years ago
What is the temperature difference across a window if the conductive heat flow rate across it is 20 J/s? The window is 4.5 m2 in area that has an R-value of 2.5 m2 C/W.
 
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#1
6 years ago
We find the rate of heat transfer from
rate of heat transfer = A DT/R = 4.5 m2 x DT/(2.5 m2 C/W).
This allows us to find DT. We have
DT = R x (rate of heat transfer)/A = (2.5 m2 C/W) x (20 J/s)/(4.5 m2) = 11.1 C.
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