(Solution) - An emphysema patient is breathing pure O2 through a face -(2025 Original AI-Free Solution)

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An emphysema patient is breathing pure O2 through a face mask. The cylinder of O2 contains 0.60 ft3 of O2 gas at a pressure of 2200 lb/in2.
(a) What volume would the oxygen occupy at atmospheric pressure (and the same temperature)?
(b) If the patient takes in 8 L/min of O2 at atmospheric pressure, how long will the cylinder last?