Question: Air is heated as it flows subsonically through a duct. When the amount of heat transfer reaches 60 kJ/kg, the flow is observed to be

Air is heated as it flows subsonically through a duct. When the amount of

heat transfer reaches 60 kJ/kg, the flow is observed to be choked, and the

velocity and the static pressure are measured to be 620 m/s and 270 kPa.

Disregarding frictional losses, determine the velocity, static temperature, and static pressure at the duct inlet.

(((use the tabel)))

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