For H2O, determine the specified property at the indicated state. (a) T = 140°C, v = 0.5 m3/kg. Find p, in bar. (b) p = 30 MPa, T = 120°C. Find v, in m3/kg. (c) p = 10 MPa, T = 400°C. Find v, in m3/kg. (d) T = 80°C, x = 0.2. Find p, in bar, and v, in m3/kg.

Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 m°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3