Liquid water at 200kpa and 15°c is heated in a chamber by mixing it with superheated steam at 200kpa and 150°c. liquid water enters the mixing chamber at a rate of 4.3kg/s, and the chamber is estimated to lose heat to the su air at 20°c at a rate of 1200 kj/min. if the mixture leaves the mixing chamber at 200kpa and 80°c determine (a)the mass flow rate of the superheated steam and (b) the rate of entropy generation during this mixing process.