Question

90 Chapter 2 PROPERTIES OF SUBSTANCES for all Pages Due 03/19/2020 start b. x=0.2, P = 100 kPa C C c. P-2 MPa, T = 400°C 2-41) Calculate the mass of water contained in a 0.6-mº vessel under the following conditions: a. 100 kPa, 150°C b. 300 kPa, 600°C c. 50 kPa, 81°C d. 400 kPa, saturated vapor e. 400 kPa, saturated liquid f. At the critical state 2-42. Determine the internal energy of H.O at 10 MPa and 450°C. Determine the enthalpy of water at a quality of 0.3 and a temperature of 300°C. Determine the specific volume of water at 5 MPa and 1000°C. 2-43. Determine the following properties of water for the given state points. Indicate any state for which there is insufficient information given to find the requested property. a. h at the critical point b. u at P = 101.35 kPa, T = 100°C c. v at saturated vapor, T = 200°C d. uat T = 900°C, P = 0.2 MPa e. h at x = 0.5, T = 300°C Calculate the mass, in kilograms, of water contained in a 3-m' tank under the following conditions: a. Saturated vapor, T = 160°C b. Saturated liquid, T = 160°C c. T = 600°C, P = 2 MPa V d. T = 50°C, P = 101 kPa Le x = 0.5, P = 500 kPa 2-45. A tank with a volume of 1 m is half-filled with liquid water; the remainder of the tank is occupied by water vapor. The pressure of the water is 275 kPa. Calculate (a) the quality of the water. (b) the mass of the vapor and the mass of the liquid water, and (c) the specific volume and internal energy of the water. 2-46. Determine the percent error in the calculated value for the specific volume that results if water at a pressure of 200 kPa and a temperature 130°C is assumed to be an ideal gas. 2-47. Calculate the change in internal energy as water vapor follows a constant- pressure path at 200 kPa from 800 to 1000°C. 2.48. Water vapor at 500 kPa and 500°C follows a constant-pressure process until ils temperature increases to 800°C. Determine the enthalpy and internal-energy

Answer 1

given calculate moss of water V=0.6m oma look pa , Iso°c from steam tables mo sporige volumen 1.92673 massa 92 9673 mass=0.3098kg.. b) 300 kPa, Gooc prom Steem tables specific volume V = 13HIHIRE Town Mess тод, а о.дч739 ка

BELEH ALL o 50k Pae 81c specific volerne. V = 3.77746 mm V = On 6 mass = 3.22740 e moss = 0.1859 kg d) Hookpa , saturated vagous 19 = 0. 4625 ming HD moss = 1.2972 kg

e) Hook pa saturated ligud V = 0.001084 m3 mas ness - - - – 553.505 kg. f). At the critical sate PS 7= 37H.1°C & P=22.064MPa Us 0.00915s mang massa = 0.008185 mass = 116.39188 kg as do your guid lines we have first som & gts 4 Seub parts,