Carbon dioxide flows from a tank through a convergentdivergent nozzle of (25-mathrm{mm}) throat and (50-mathrm{mm}) exit diameter.

Question:

Carbon dioxide flows from a tank through a convergentdivergent nozzle of \(25-\mathrm{mm}\) throat and \(50-\mathrm{mm}\) exit diameter. The absolute pressure and temperature in the tank are \(241.5 \mathrm{kPa}\) and \(37.8^{\circ} \mathrm{C}\), respectively. Calculate the mass flow rate when the absolute exit pressure is

(a) \(172.5 \mathrm{kPa}\)

(b) \(221 \mathrm{kPa}\).

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