A gas storage cylinder contains nitrogen at $250 \mathrm{psig}$ and $70^{\circ} \mathrm{F}$. Attached to the cylinder is a 3 in. long $1 / 4$ in. sch 40 stainless steel pipe nipple, and attached to that is a globe valve followed by a diaphragm valve. Attached to the diaphragm valve is a $1 \frac{1}{4} \mathrm{in}$. ID copper tubing line. Determine the mass flow rate of nitrogen (in $1 \mathrm{~b}_{\mathrm{m}} / \mathrm{s}$ ), if

(a) The copper tubing breaks off at a distance of $30 \mathrm{ft}$ downstream of the diaphragm valve.

(b) The pipe breaks off right at the cylinder.