The brick wall (of thermal conductivity
0.89 W/m ·◦ C) of a building has dimensions
of 2.6 m by 6 m and is 22 cm thick.
How much heat flows through the wall in
a 11.1 h period when the average inside and
outside temperatures are, respectively, 20◦C
and 8◦C?
Answer in units of MJ.
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Comments
Dear Mary p, on hour contains 3600 seconds, so 11.1 h = 11.1*3600 s
Where is the 3600 coming from?
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