Question

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.

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
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 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 mass of one kg of water within a piston–cylinder assembly undergoes a constant-pressure process from...
A mass of one kg of water within a piston–cylinder assembly undergoes a constant-pressure process from saturated vapor at 500 kPa to a temperature of 260°C. Kinetic and potential energy effects are negligible. For the water: a) Evaluate the work, in kJ, b) If the work is 30 kJ, evaluate the heat transfer, in kJ, c) If the heat transfer is negligible, evaluate the entropy production in kJ/K d) Determine if the process is reversible, irreversible, or impossible.
1 kg of water in a piston cylinder arrangement is initially in a saturated liquid state...
1 kg of water in a piston cylinder arrangement is initially in a saturated liquid state at 1 bar. It undergoes expansion at constant pressure due to external heat supply to it, to a final state of saturated vapor. (i) What is the initial temperature of water in C? (a) 93.50 (b) 96.71 (c) 99.63 (d) 111.4 (e) 12.2 (ii) What is the change in enthalpy of water (kJ/kg-K)? (a) 417.46 (b) 2258.0 (c) 2675.5 (d) 2506.1 (iii) What is...
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 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
Steam, initially at 700 lbf/in.2, 550°F undergoes a polytropic process in a piston–cylinder assembly to a...
Steam, initially at 700 lbf/in.2, 550°F undergoes a polytropic process in a piston–cylinder assembly to a final pressure of 2200 lbf/in.2 Kinetic and potential energy effects are negligible. Determine the heat transfer, in Btu per lb of steam, for a polytropic exponent of 1.4, (a) using data from the steam tables. (b) assuming ideal gas behavior.
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)
water contained in a piston cylinder assembly, initially at 1.5bar and a quality of 20%, is...
water contained in a piston cylinder assembly, initially at 1.5bar and a quality of 20%, is heated at constant pressure
Ammonia contained in a piston–cylinder assembly, initially saturated vapor at T1 = 4°F, undergoes an isothermal...
Ammonia contained in a piston–cylinder assembly, initially saturated vapor at T1 = 4°F, undergoes an isothermal process to a final specific volume v2 = 5.2 ft3/lb. Determine the final pressure, in lbf/in2, and the final quality, x2.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT