Question

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

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, 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...
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 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.
A piston-cylinder device initially contains 75 g of saturated water vapor at 340 kPa . A...
A piston-cylinder device initially contains 75 g of saturated water vapor at 340 kPa . A resistance heater is operated within the cylinder with a current of 0.6 A from a 300 V source until the volume doubles. At the same time a heat loss of 7 kJ occurs. Part A)Determine the final temperature (T2). Part B)Determine the duration of the process. Part C) What-if scenario: What is the final temperature if the piston-cylinder device initially contains saturated liquid water?
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.
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)
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.
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100 kPa pressure. The gas is now compressed to a final temperature of 95oC at 250 kPa. This compression is polytropic and follows PVn=constant. a. Determine how much boundary work was added to the gas [in kJ] b. How much heat was added or removed from this system during this process? [in kJ]
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.
1-kg water in a frictionless piston-cylinder device is initially at 250°C and 300 kPa (state 1)....
1-kg water in a frictionless piston-cylinder device is initially at 250°C and 300 kPa (state 1). A total of 700 kJ of work is done ON the water in order to isothermally reduce its volume to 1/20 of its initial volume (state 2). Determine the magnitude and direction of the heat transfer involved in this process. Answer: -1147 kJ.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT