A Steady flow centrifugal compressor is supplied with saturated water vapor at 15kPa and 500kg of the water is compressed per hour to 250kPa, 400C. During the process there is a heat transfer to the surroundings (T0=30C) at a rate of 0.8kW.
(1) Determine the power required to compress the water
(2) The rate of change of entropy of the water
(3) The rate of chnage of entropy of the surroundings.