Consider a steam power plant that operates on the ideal reheat rankine cycle. the plant maintains the boiler at 5,000 kpa, the reheat section at 1,200 kpa, and the condenser at 20 kpa. the mixture quality at the exit of both turbines is 96 percent. determine the temperature at the inlet of each turbine and the cycle's thermal efficiency.

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2