Helium (an ideal gas, M = 4, k = 1.667) enters an adiabatic compressor at 1 MPa, 27°C, and 120 m/s. At the compressor outlet the cross-sectional area is 260 cm2 , and the helium leaves at 2 MPa,...

Helium (an ideal gas, M = 4, k = 1.667) enters an adiabatic compressor at 1 MPa, 27°C, and 120 m/s. At the compressor outlet the cross-sectional area is 260 cm2 , and the helium leaves at 2 MPa, 227°C, and 20 m/s. a. Find the power of the compressor. b. Find the internal energy change of the helium passing through the compressor