Question

6.19. A two-phase system of liquid water and water vapor in equilibrium at 8000 kPa con sists of equal volumes of liquid and

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Since it is given in the question the water and water vapor are in equilibrium, the water vapor will be in saturated form.

So from the steam table for saturated steam at 8000 kPa (8 MPa ),

The total enthalpy Ht = 2758.611 kJ/kg

The total entropy St = 5.745 kJ/ kg . K

This is the image of the saturated steam table at that particular pressure,

275 250 85 | 5.9418 6.4117 6.9004 7.4380 7.9928 0.001317 0.001332 0.00 1348 0.00 1366 0.00 1384 0.03279 0.03017 0.02777 0.025

The first column is temperature, the second column is pressure, fourth last column is total enthalpy and the last column is the total entropy.

Add a comment
Know the answer?
Add Answer to:
6.19. A two-phase system of liquid water and water vapor in equilibrium at 8000 kPa con...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • of liquid water and 0.9 m2 of water vapor in equilibrium at 600 kPa. Heat is...

    of liquid water and 0.9 m2 of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature 3-51 A piston-cylinder device contains 0.005 m reaches 200°C What is the initial temperature of the water Determine the total mass of the water Chlouwle the final volume. Show the process on a pu diagram with respect to s tation lines. HO P600 kPa FIGURE P3-51

  • Water at 0.15 MPa if the water is 0.25% between liquid and vapor what is the...

    Water at 0.15 MPa if the water is 0.25% between liquid and vapor what is the specific volume, Energy, Enthalpy and Entropy?

  • A pressure vessel contains liquid water and water vapor in equilibrium at 350℉. The total mass...

    A pressure vessel contains liquid water and water vapor in equilibrium at 350℉. The total mass of liquid and vapor is 4.5 lbm. If the volume of vapor is 50 times the volume of liquid, what is the total enthalpy of the contents of the vessel? The total enthalpy is Btu

  • Thermodynamics A piston-cylinder system contains 0.005 m3 of liquid water and 0.8 m3 of water vapor...

    Thermodynamics A piston-cylinder system contains 0.005 m3 of liquid water and 0.8 m3 of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature reaches 200ºC. a- Determine the initial thermodynamic state of the system. b- Find the initial temperature of water. c- Calculate the total mass of water in the cylinder. d- Find the final volume of the system. e- Sketch the above thermodynamic process on a P-V phase diagram.

  • Ten kilograms of water in a piston/cylinder arrangement exists as saturated liquid/vapor at 100 kPa, with...

    Ten kilograms of water in a piston/cylinder arrangement exists as saturated liquid/vapor at 100 kPa, with a quality 20%. The system is now heated so that the volume triples. The mass of the piston is such that a cylinder of 300 kPa will float it. (a) Find the final temperature. (b) Find the heat transfer in the process. (c) What is the phase of water when the piston just starts to lift up? (d) Sketch the process on a P-v...

  • dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T,...

    dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T, 20-C -200 kP Water Unknown quality P, 200 kPa Mixing Chamber Saturated water vapor P 200 kPa What is the enthalpy for the cold water (stream 1)? What is the enthalpy for the saturated vapor (stream 2)? If both the streams enter the mixing chamber at the same mass flow rate of 0.8 kg/s, determine the enthalpy of the exiting stream.

  • In a well-insulated rigid tank which contains 2 kg of a saturated liquid-vapor mixture of water at 200 kPa

    In a well-insulated rigid tank which contains 2 kg of a saturated liquid-vapor mixture of water at 200 kPa, 40% of the mass is in the liquid phase. A heater is providing heat to the content of the tank so that all liquid phase converts to vapor phase. Calculate the entropy change of water in this process.

  • A two-phase, liquid-vapor mixture of H2O, initially at x = 30% and a pressure of 100 kPa, is...

    A two-phase, liquid-vapor mixture of H2O, initially at x = 30% and a pressure of 100kPa, is contained in a piston-cylinder assembly, as shown in Fig. The mass of the pistonis 10kg, and its diameter is 15 cm. The pressure of the surroundings is 100kPa. As thewater is heated, the pressure inside the cylinder remains constant until the piston hits the stops. Heat transfer to the water continues at constant volume untilthe pressure is 150 kPa. Friction between the piston...

  • 1. At 241.95 K, the vapor pressure of liquid propane and n-butane are 160.0 kPa and...

    1. At 241.95 K, the vapor pressure of liquid propane and n-butane are 160.0 kPa and 26.7 kPa, respectively.) a) Calculate the total pressure above a solution that contains 0.2 moles of propane and 0.6 moles of n-butane. Assume that the two components form an ideal solution. b) What is the composition of the vapor phase in equilibrium with the liquid phase? c) Calculate AmiG and AmixS for the formation of this mixture.

  • Can saturated water vapor at 200 kPa be condensed to a saturated liquid in an isobaric,...

    Can saturated water vapor at 200 kPa be condensed to a saturated liquid in an isobaric, closed system process while only exchanging heat with an isothermal energy reservoir at 90 C? (Hint: Determine the entropy generation.) please include given and schematic please

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT