1. A turbine receives a steady flow of steam under the following conditions: inlet enthalpy 2 450 kJ/kg, exit enthalpy 2 200 kJ/Kg, inlet velocity 95 m/s, exit velocity 145 m/s, heat loss to surroundings 90 kJ/s, mass of steam 7.6 kg/s. Calculate the power developed by the turbine. (4) 2. A perfect gas has a molecular weight of 35 kg/kgmol and a value of Y= 1.28. Calculate the heat rejected (Neglect changes in velocity of the gas in the pipeline): 2.1. When the unit mass of the gas is contained in a rigid vessel at 4.5 bar and 320C and is then cooled until the pressure falls to 2 bar. (7) 2.2. When the unit mass flow rate of the gas enters a pipeline at 260C, and flows steadily to the end of the pipe where the temperature is 18C. (3)