Five pounds of air per second discharge from a tank through a convergent-divergent nozzle into another tank where a vacuum of 10 in. of mercury is maintained. If the pressure and temperature in the upstream tank arc 100 in. of mercury absolute and 100°F, respectively, what nozzle-exit diameter must be provided for full expansion? What throat diameter is required? Calculate pressure, temperature, velocity, and sonic velocity in throat and nozzle exits. Barometric pressure is 30 in. of mercury.
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