Question No.13: (a) A turbine operates under steady flow conditions, receiving steam at the following state: Pressure 1.2MPa, temperature 188C, enthalpy 2785KJ/Kg, velocity 33.3m/s and elevation 3m. The steam leaves the turbine at the following state: Pressure 20MPa, temperature 1880C, enthalpy 2512KJ/Kg, velocity 100m/s and elevation 0m. Heat is lost to the surroundings at the rate of 0.29KJ/s. If the rate of steam flow through the turbine is 0.42Kg/s, what is the power output of the turbine? (b) Prove that internal energy is a property. Question No.13: (a) A turbine operates under steady flow conditions, receiving steam at the following state: Pressure 1.2MPa, temperature 188C, enthalpy 2785KJ/Kg, velocity 33.3m/s and elevation 3m. The steam leaves the turbine at the following state: Pressure 20MPa, temperature 1880C, enthalpy 2512KJ/Kg, velocity 100m/s and elevation 0m. Heat is lost to the surroundings at the rate of 0.29KJ/s. If the rate of steam flow through the turbine is 0.42Kg/s, what is the power output of the turbine? (b) Prove that internal energy is a property