A typical carbon dioxide tank for a paintball gun holds about 12 oz of liquid CO2. The tank is filled no more than one-third with liquid, which, at room temperature, maintains the gaseous phase at about 850 psia.

(a) If a valve is opened that simulates a converging nozzle with an exit diameter of 0.050 in, what mass flow and exit velocity result?

(b) Repeat the calculation for helium.