Air with a mass flow rate of 2.3 kg/s enters a horizontal nozzle operating at steady state at 420 K, 350 kPa, and velocity of 19 m/s. At the exit, the temperature is 300 K and the velocity is 460 m/s. Using the ideal gas model for air with constant cp = 1.011 kJ/kg- K, determine: (a) the area at the inlet, in m2. (b) the heat transfer to the nozzle from its surroundings, in kW.

Air with a mass flow rate of 2.3 kg/s enters a horizontal nozzle operating at steady state at 420 K, 350 kPa, and velocity of 19 m/s. At the exit, the temperature is 300 K and the velocity is 460 m/s. Using the ideal gas model for air with constant cp = 1.011 kJ/kg- K, determine: (a) the area at the inlet, in m2. (b) the heat transfer to the nozzle from its surroundings, in kW.

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