Question

1. Find the internal energy of water at the given states for 7 MPa and plot the states on T-v, and P-v. a. dry saturated or saturated vapor b. wet saturated or saturated liquid c. moisture = 5% by weight d. T = 600°C e. T = 100°C f. T = 460°C 2. Determine the enthalpy of 1.5 kg of water contained in a volume of 1.2 m³ at 200 kPa. Show the state on a P-v diagram. 3. Consider the closed, rigid container of water shown below. The pressure is 700 kPa, the mass of the saturated liquid is 1.78 kg, and the mass of the saturated vapor is 0.22 kg. Heat is added to the water until the pressure increases to 8 MPa. Find the final temperature, enthalpy, and internal energy of the water. Does the liquid level rise or fall? Plot this process on a P-v diagram with respect to the saturation lines and the critical point. State three assumptions and sketch the system. mg, Vg Sat. Vapor mf, Vf Sat. Liquid

          1. Find the internal energy of water at the given states for 7 MPa and plot the states on T-v, and P-v.
a. dry saturated or saturated vapor
b. wet saturated or saturated liquid
c. moisture = 5% by weight
d. T = 600°C
e. T = 100°C
f. T = 460°C

2. Determine the enthalpy of 1.5 kg of water contained in a volume of 1.2 m³ at 200 kPa. Show the state on a P-v diagram.

3. Consider the closed, rigid container of water shown below. The pressure is 700 kPa, the mass of the saturated liquid is 1.78 kg, and the mass of the saturated vapor is 0.22 kg. Heat is added to the water until the pressure increases to 8 MPa. Find the final temperature, enthalpy, and internal energy of the water. Does the liquid level rise or fall? Plot this process on a P-v diagram with respect to the saturation lines and the critical point. State three assumptions and sketch the system.

mg, Vg
Sat. Vapor
mf, Vf
Sat. Liquid

1. Find the internal energy of water at the given states for 7 MPa and plot the states on T-v, and P-v.
a. dry saturated or saturated vapor
b. wet saturated or saturated liquid
c. moisture = 5% by weight
d. T = 600°C
e. T = 100°C
f. T = 460°C

2. Determine the enthalpy of 1.5 kg of water contained in a volume of 1.2 m³ at 200 kPa. Show the state on a P-v diagram.

3. Consider the closed, rigid container of water shown below. The pressure is 700 kPa, the mass of the saturated liquid is 1.78 kg, and the mass of the saturated vapor is 0.22 kg. Heat is added to the water until the pressure increases to 8 MPa. Find the final temperature, enthalpy, and internal energy of the water. Does the liquid level rise or fall? Plot this process on a P-v diagram with respect to the saturation lines and the critical point. State three assumptions and sketch the system.

mg, Vg
Sat. Vapor
mf, Vf
Sat. Liquid

Added by Asunci-N M.

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