Problem 4.45 - Problem 4.45[Difficulty 2 CS Outflow Given...

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Problem 4.45 [Difficulty: 2] Outflow CS Given: Data on airflow out of tank Find: Find rate of change of density of air in tank Solution: 0 = + CS CV A d V V d t r r ρ Basic equation Assumptions: 1) Density in tank is uniform 2) Uniform flow 3) Air is an ideal gas Hence V tank d ρ tank dt ρ exit V A + 0 = d ρ tank dt ρ exit V A V tank = p exit V A R air T exit V tank
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