An emphysema patient is breathing pure O2 through a face mask. The cylinder of O2 contains 0.20 ft3 of O2 gas at a pressure of 2200 lb/in2.

Question

(a) What volume would the oxygen occupy at atmospheric pressure (and the same temperature)?
ft3

(b) If the patient takes in 8.0 L/min of O2 at atmospheric pressure, how long will the cylinder last?

Answer 1

2.55
5