zebivong 2.43. The heating of a home to increase its temperaature must be modeled as an open system, because expansion of the household air at constant pressure results in leakage of air to the...

Topic: Chemical Engineering Thermodynamics

Extracted text: zebivong 2.43. The heating of a home to increase its temperaature must be modeled as an open system, because expansion of the household air at constant pressure results in leakage of air to the outdoors. Assuming that the molar properties of air leaving the home are the same as those of the air in the home, show that eneregy and mole balances yield the following differential equation: 1ot noi221 niwollol arli avislidu v Q = -PV +n- dt dn dUm orli ei norlw woll insludhm rol 1 dt Here, Q is the rate of heat transfer to the air in the home, and t is time. Quantities P, V, n, and U refer to the air in the home. 2 0