Air with a mass flow rate of 2.3 kg/s enters a horizontal nozzle operating at a steady-state at 450 K, 350 kPa, and a velocity of 3 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 m^2
b. the heat transfer between the nozzle at its surroundings in kW.
c. Specify whether the heat transfer is to or from the air.

the answer is b

explanation:

it breaks and dirupture other materials and other sencews from the bottom

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is