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

Homework Answers

Know the answer?
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
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 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.
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.
Steam undergoes an isentropic compression in an insulated piston–cylinder assembly from an initial state where T1...
Steam undergoes an isentropic compression in an insulated piston–cylinder assembly from an initial state where T1 = 120°C, p1 = 1 bar to a final state where the pressure p2 = 20 bar. Determine the final temperature, in °C, and the work, in kJ per kg of steam. The final temperature equals 513.87°C.
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 contains a mixture of 0.2 kg of H2 and 1.6 kg of...
A piston cylinder device contains a mixture of 0.2 kg of H2 and 1.6 kg of N2 at 100 kPa and 300K. Heat is now transferred to the mixture at constant pressure unitl the volume is doubled. Assuming constant specific heats at the average temperature (the constant pressure specific heats of H2 and N2 are 14.501 kJ/kg°K and 1.049 kJ/kg°K, respectively), determine: a) the heat transfer. b) the entropy change of the mixture.
steam is contained in a piston and cylinder assemble at a pressure of 5 bar and...
steam is contained in a piston and cylinder assemble at a pressure of 5 bar and temperature of 700 degrees celcius. At this initial condition, the cylinder is restrained by stops since the pressure is applied on piston only supprts a pressure of 3 bar in the cylinder. The initial volume of system is 1m^3 and cooling is applied to the system until final volume is 0.1m^3. Determine work and heat transfer.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT