Question 5 --/10 An air compressor takes in 1 kg/s of air at p1 100 kPa, T = 17C and delivers it at p2 1 MPa, T = 600 K to a constant-pressure cooler, which it exits at T3 = 300 K at steady state. Heat transfer from the compressor to the surrounding is 20 kW. Kinetic, potential energy changes are negligibly small. Air can be modeled as an ideal gas with k = 1.4. What is the heat transfer from the constant-pressure cooler in kW? 129.35 2 -331.24 3 -301.35 4 -129.35 331.24