A smooth 3-in.-diameter hole is punched into the side of a large chamber where oxygen is stored at 500°R and 150 psia. Assume frictionless flow. (a) Compute the initial mass flow rate from the chamber if the surrounding pressure is 15.0 psia. (b) What is the flow rate if the pressure of the surroundings is lowered to zero? (c) What is the flow rate if the chamber pressure is raised to 300 psia?

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