Steam at 2.5 MPa and 450C expands in a turbine adiabatically to saturated vapor at 50 kPa. determine the power output in kW if the flow rate is 2.1 kg/s

The valve connected to a 450-liter insulated tank of air at 250 kPa and 50̊C is opened,allowing the gas to escape until its pressure drops to 120 kPa. An electric heater insidethe tank maintains the temperature at 50̊C. Using variable specific heats, Determine thefollowing:a) The mass of air withdrawn (kg)b) The energy input to the resistor (kJ)

A mass flowrate of 1 Ibm/s of water at 80 F and 70 pisa is mixed with 1 Ibm/s of saturated vapor water at 70 psia in a mixing chamber. During this process 100 Btu/s of heat is lost from the mixing chamber to the surrounding environment. The exiting stream leaves the mixing chamber at 70 psia. In the question that follows, select the answer that is closest to the true value. What is the quality of the exiting stream ?

2. Steam expands in a turbine from 4 MPa and 400°C to 50 kPa and 100°C at a rate of 2.3 kg/s. Heat is lost from the turbine at a rate of 58 kJ/s during the process. Find the power output of the turbine.