#1. A centrifugal pump compresses 50 kg/sec of water adiabatically from 98 kPaa to 300 kPaa. The inlet and outlet temperatures are at 25 oC. The Inlet and discharge piping are at the same level (ΔPe=0), but the diameter of the inlet piping is 15 cm, where as that of the discharge piping is 10 cm. Determine the pump power in kilowatts. The density of water is 1000 kg/m3