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Question 1 . ( 2 5 points ) A house with a floor area of 1 0 0 m 2 and a ceiling height of
Question points A house with a floor area of and a ceiling height of contains moles of air. Heating
the house supplies an internal energy gain of per mole of air at a constant pressure of bar. This heating process
induces expansion of air that results with an unintended air leakage to the outdoors at a rate of The leaking air
is assumed to have the same composition, temperature, pressure, and molar properties as the indoor air.
a Draw a simple sketch showing the system boundaries and flowing streams with their properties.
b Show the mass mole and energy balances. List all assumptions.
c Calculate the total rate of heat transfer to the air in the house in
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