At steady state, air at 200 kPa, 330 K, and mass flow rate of 0.5 kg/s...

At steady state, air at 200 kPa, 330 K, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. The inlet cross-sectional area is 6 cm². At the duct exit, the pressure of the air is 100 kPa and the velocity is 250 m/s.

Neglecting potential energy effects and modeling air as an ideal gas with constant c_p = 1.008 kJ/kg · K, determine:

(a) the velocity of the air at the inlet, in m/s.

(b) the temperature of the air at the exit, in K.

(c) the exit cross-sectional area, in cm².

Expert Solution

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samet mamat answered 2 years ago

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