Thermodynamics

Water in a piston-cylinder assembly, initially at a temperature of 99.59 °C and a quality of 52%, 

is heated at constant pressure to a temperature of 210 °C. Changes in kinetic and potential energy 

are negligible. If the work during the process is +300 kJ, 

(a) Determine the phase of the final state. Plot the process on T-υ and P-υ diagrams. (5’) 

(b) Find initial pressure P1, initial specific volume υ1, initial specific internal energy u1; and 

final P2, υ2 and u2. Show the process of interpolation where interpolation is needed. (3’×5) 

(b) The total mass of water (liquid and vapor) in kg. (10’) 

(c) The heat transfer in kJ. (10’)