Steam enters the turbine of a simple vapor power plant with a pressure of 10 MPa and temperature (T), and expands adiabatically to 6kPa. The isentropic turbine efficiency is 85%. Saturated liquid exits the condenser at 6 kPa and the isentropic pump efficiency is 82%. (a) For T=580 degrees celcius, determine the turbine exit quality and the cylce thermal efficiency.