1. Determine the phase or phases in a system consisting of H₂O at the following conditions and sketch p-v and T-v diagrams showing the location of each state. (a) p=5 bar, T = 151.9 °C. (b) p = 5 MPa, T = 264 °C (c) T 180 °C, 0.9 MPa (d)) p = 20 MPa, T = 100 °C (e) T-10 °C, 1.0 kPa​