Question

A piston-cylinder device contains 0.9 kg of steam at 350⁰C and 1.4 MPa. Steam is cooled...

A piston-cylinder device contains 0.9 kg of steam at 350⁰C and 1.4 MPa. Steam is cooled at constant
pressure until one-half of the mass condenses.
(a) show the process on a T-v and P-v diagrams,
(b) find the final temperature and
(c) determine the volume and entalphy changes.

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A piston-cylinder device contains 0.54 kg of steam at 300 degrees C and 3 MPa. Steam...
A piston-cylinder device contains 0.54 kg of steam at 300 degrees C and 3 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. (A) Find the final temperature (B) Determine the volume change
A piston-cylinder device with a set of stops initially contains 0.35 kg of steam at 1.0...
A piston-cylinder device with a set of stops initially contains 0.35 kg of steam at 1.0 MPa and 900 degrees C. The location of the stops corresponds to 44 percent of the initial volume. Now the steam is cooled. Determine the magnitude of the compression work if the final state is (A) 1.0 MPa and 600 degrees C and W=. kJ (B) 500 kPa. W=. kJ (C) Also determine the temperature at the final state in part (B). T2=. C
A piston cylinder device contains 0.15 kg of air initially at 2 MPa and 350 C....
A piston cylinder device contains 0.15 kg of air initially at 2 MPa and 350 C. First, the air expands isothermally to a pressure of 500 kPa. Then, it is compressed polytropically back to the initial pressure (2 MPa) with a polytropic exponent of 1.2. Find the work performed or introduced by or to the air for each process. Express it both times in kJ.
a plunger cylinder device contains 0.8 kg of water at 4 Mpa and 500 ° C,...
a plunger cylinder device contains 0.8 kg of water at 4 Mpa and 500 ° C, it begins to lose heat causing the piston to descend to a set of stops inside the cylinder, at which point saturated steam is obtained through an isobaric process. Cooling continues until the cylinder contains water at 1 atm pressure. The heat transferred during this process is kJ
In a piston cylinder device, initially 0.005 m3 liquid water and 0.9 m3 water vapor are...
In a piston cylinder device, initially 0.005 m3 liquid water and 0.9 m3 water vapor are at equilibrium at 600 kPa. Heat is given at constant pressure until the final temperature reaches 200 ° C. (a) Show the process in the P-v and T-v diagram (b) What is the initial temperature of the water? (c) Find the total mass of water (d) Calculate the final volume
2 kg of steam initially at 2.00 MPa and 225?C expands in a piston-cylinder assembly until...
2 kg of steam initially at 2.00 MPa and 225?C expands in a piston-cylinder assembly until the final pressure is 0.10 MPa. During the process, the temperature of steam is kept constant by keeping it in a constant temperature atmosphere at 225?C. a. What is the maximum amount of work that can be produced? What is the entropy change of steam? What is the entropy change of the universe? b. Suppose that the actual work done is 80% of the...
A piston - cylinder device, whose piston is resting on a set of stops, initially contains...
A piston - cylinder device, whose piston is resting on a set of stops, initially contains 2 kg of air at 300 kPa and 27 degree C. The mass of the piston is such that a pressure of 600 kPa is required to move it. Heat is now transferred to the air until its volume doubles. a) Show the process on p - V and p - T diagrams. b) Determine the work done by the air. c) Determine the...
Entropy From Steam Tables A piston-cylinder assembly contain 2 kg of water. The water is initially...
Entropy From Steam Tables A piston-cylinder assembly contain 2 kg of water. The water is initially at the pressure of 0.5 MPa and the temperature of 300°C. The water is cooled down at constant pressure process until it is a saturated vapor. Determine the change in the entropy of the system.
H3.3 A frictionless piston-cylinder device contains 2 kg of H2O initially at T1 = 300◦C and...
H3.3 A frictionless piston-cylinder device contains 2 kg of H2O initially at T1 = 300◦C and p1 = 5 bar. The device is cooled at constant pressure until the volume is ∀2 = 0.5 m3 . Assume a quasiequillibrium process which occurs slowly with no acceleration as the piston moves. Kinetic and potential energy effects are negligible. Determine: a. work [kJ] during process (indicate magnitude and direction) b. heat transfer [kJ] during process (indicate magnitude and direction)
A piston cylinder device contains 5 kg of Refrigerant 134a at 800 kPa and 70 C....
A piston cylinder device contains 5 kg of Refrigerant 134a at 800 kPa and 70 C. The refrigerant is now cooled at constant pressure until it reaches a saturated vapor state. How much heat was lost in the process? Express your result in kJ and you may ignore the negative sign.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT