How would you do this? For EMT

On most ambulances, oxygen is the only
"drug" on board. Oxygen tanks come in
various sizes, one of which is an M
Cylinder. This tank contains 3,000L of
oxygen. How many minutes will this tank
last if it has a pressure of 1.000 psi and a
flow rate of 15L/minute?
А
83.2 minutes
B
180 minutes
С
1800 minutes
D
832 minutes

Respuesta :

Answer:

83.2

Explanation:

Tank constant = 1.56

Safe Residual Pressure = 200

Flow = 15

Pressure = 1000 PSI

Duration = ?

1.56 * (1000-200) = 1248

1248/ 15 = 83.2

Formula: (Tank constant * (Tank pressure - Safe Residual Pressure)) / Flow Rate

Here's a calculator to test it for yourself, http://www-users.med.cornell.edu/~spon/picu/calc/o2tankd.htm