Asimple ideal brayton cycle operates with air with minimum and maximum temperatures of 27 degree c and 727 degree c. it is designed so that the maximum cycle pressure is 2000 kpa and the minimum cycle pressure is 100 kpa. determine the network produced per unit mass of air each time this cycle is executed and the cycle's thermal efficiency. use constant specific heats at room temperature. repeat problem 1 when the isentropic efficiency of the turbine is 90% and that of the compressor is 80%.