The pressure in a vessel is reduced by discharging air through a convergent-divergent nozzle to the atmosphere where the pressure is 1.013 bar. The air in the vessel expands isothermally at a temperature of 400 K while the flow out of it is quasi-steady. The throat and exit diameters of the nozzle are 10 mm and 11.9 mm respectively. 1. For the instant that the nozzle is operating at design conditions, determine a. The Exit Mach number b. The Exit Temperature c. The Vessel Pressure 2. At the Instant that chocked flow ceases, determine d. The Exit Mach number e. The Exit Temperature f. The Vessel Pressure