In an air-standard Brayton cycle, air enters the compressor at 1000 lbm/hr, 14.7 psia, and 40°F and exits at 70 psig. The inlet turbine temperature is 1440°F. The turbine expansion process of the cycle is accomplished in two stages, with reheat at 50 psi back to 1440°F in between. Determine all of the state points and the efficiency. What is the temperature, pressure, and enthalpy of all states(1,2,2a,2b,3,4)?