An oxygen tank of 500 L is 80 atm in a room 25°C and 1.0 atm is used for supplying oxygen to a patient. If the flow rate of oxygen coming out from the tank is set to me 1.00 L/s, about how long will this tank last for this purpose?
a. 11 hr
b. 5.5 hr
c. 2.3 hr
d. 16 min
e. 8.3 min
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