Nitrogen flows from a large tank, through a convergent nozzle of 2-in. tip diameter, into the atmosphere. The temperature in the tank is 200°F. Calculate pressure, velocity, temperature, and sonic velocity in the jet, and calculate the flow rate when the tank pressure is (a) 30 psia and (b) 25 psia. Barometric pressure is 15.0 psia. What is the lowest tank pressure that will produce sonic velocity in the jet? What is this velocity, and what is the flowrate?
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