Question

A system consisting of 2 kg of water initially at 130°C, 10 bar undergoes an internally...

A system consisting of 2 kg of water initially at 130°C, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 700 kJ.

Determine the final pressure, in bar, and the work by the system, in kJ.

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

Homework Answers

Answer #1

final pressure in bar is 2.7028

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
Nitrogen (N2) undergoes an internally reversible process from 6 bar, 247°C during which pν1.1 = constant....
Nitrogen (N2) undergoes an internally reversible process from 6 bar, 247°C during which pν1.1 = constant. The initial volume is 0.1 m3 and the work for the process is 50 kJ. Assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kJ, and the entropy change, in kJ/K. Q = kJ ΔS = kJ/K
A gas initially at 2.8 bar and 60ºC is compressed to a final pressure of 14...
A gas initially at 2.8 bar and 60ºC is compressed to a final pressure of 14 bar in an isothermal internally reversible process. Determine the work and heat transfer, each in kJ per kg of gas, if the gas is (a) Refrigerant 134a, (b) air as an ideal gas. Sketch the process on p–v and T–s coordinates
Water, initially (state 1) a saturated liquid at 1100C, is contained in a piston-cylinder assembly. The...
Water, initially (state 1) a saturated liquid at 1100C, is contained in a piston-cylinder assembly. The water undergoes a process to the corresponding saturated vapor (state 2), during which the piston moves freely in the cylinder. If the change of state is brought about by heating the water as it undergoes an internally reversible process at constant pressure and temperature, determine (a) heat transfer using first law of thermodynamics in kJ/kg and (b) heat transfer using second law of thermodynamics...
Water undergoes a constant‐volume process within a piston–cylinder assembly from saturated liquid at 4 bar to...
Water undergoes a constant‐volume process within a piston–cylinder assembly from saturated liquid at 4 bar to a final pressure of 50 bar. Kinetic and potential energy effects are negligible. Determine the work and the heat transfer, each in kJ per kg of water. [7 points]
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.
A system of mass 10 kg undergoes a process during which there is no work, the...
A system of mass 10 kg undergoes a process during which there is no work, the elevation decreases by 50 m, and the velocity increases from 15 m/s to 50 m/s. The specific internal energy decreases by 5 kJ/kg and the acceleration of gravity is constant at 9.8 m/s2. Determine the change in kinetic energy, in kJ, and the amount of energy transfer by heat for the process, in kJ.
Two kg of refrigerant 134a undergoes an isothermal process in a pistoncylinder assembly from p1 =...
Two kg of refrigerant 134a undergoes an isothermal process in a pistoncylinder assembly from p1 = 2 bar, T1 = 20C to x2 = 75%. The process is reversible and changes in kinetic and potential energy are negligible. Determine the energy transfers as heat and work for the process, each in kJ.
A closed system containing R-134a initially at 280 kPa and 30 °C undergoes a reversible isothermal...
A closed system containing R-134a initially at 280 kPa and 30 °C undergoes a reversible isothermal process, after which its quality is 0.40. (a) What is the specific heat and work transfer, q and w, experienced by the system? (b) Sketch the process on a T-s diagram, labeling the states and the isobars.
Water, initially saturated vapor at 14.6 bar, fills a closed, rigid container. The water is heated...
Water, initially saturated vapor at 14.6 bar, fills a closed, rigid container. The water is heated until its temperature is 200°C. For the water, determine the heat transfer, in kJ/kg. Kinetic and potential energy effects can be ignored.
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...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT