1. What are the temperature, specific entropy, specific enthalpy and specific volume of superheated steam when: a. Pressure is 6 MPa and specific internal energy is 2792 kJ/kg
b. Pressure is 6 MPa and specific internal energy is 2902 kJ/kg
c. Pressure is 6.5 MPa and specific internal energy is 2892 kJ/kg

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.