A simple Brayton cycle operates with air with minimum and maximum temperatures of 27 C and 727 C. It is designed so that the maximum cycle pressure is 2000 kPa and the minimum cycle pressure is 200 kPa; the isentropic efficiency of the turbine is 93.3 percent. Determine the A) net work produced per unit mass of air each time this cycle is executed and B) the cycle's thermal efficiency.