Water steam flows steadily through an adiabatic turbine. The inlet conditions of steam are 1.0 x 106 Pa and 600°C, one of the exit conditions is 7.5 x 103 Pa. Assuming the process is isentropic, determine (with the help of the steam table): (a) the temperature of the steam at the exit (K). (b) the quality of the steam at the exit (%). (c) the specific enthalpy of the steam at the exit (kJ/kg). (d) the work done per unit mass by the turbine (kJ/kg).

5

Question : Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature T1 = 900K and pressure P1 = 895 kPa (state 1). The ambient temperature and pressure are maintained at T (e) = 300K and P (e) = 100 kPa. The air expands in a reversible adiabatic process until the air pressure reaches the ambient pressure P(e) (the intermediate state 2). Subsequently, the system undergoes an isobaric process until it reaches the dead state DS. Part ( A) Evaluate the volume and internal energy of the air in the initial state 1, in the intermediate state 2, and in the final dead state DS. Also evaluate the temperature of the air in the intermediate state

Thermodynamic