1. Air at 82 kPa and 18C entersan adiabatic diffuser with a velocity of 230 m/s and leaves with negligible velocity compared to the initial velocity at a pressure of 97 kPa. The heat capacity of air at constant pressure is 3.5R. What is the temperature as the air exits the diffuser? A. 318.26 K B. 320.24 K C. 319.16K D. 317.51 K 2. A wind turbine utilizes the energy of wind to generate electricity. The kinetic energy of the wind is converted to work by passing through the turbine blade with a diameter of 100 m. What is the minimum velocity of the wind passing through the wind turbine needed to generate atleast 1500 kW of power? (density = 1.2 kg/m) A. 6.83 m/s B. 6.38 m/s C. 8.36 m/s D. 8.63 m/s