Question

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

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

Homework Answers

Answer #1

Please give thumbs up

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
Carbon dioxide (CO2) is compressed in a piston–cylinder assembly from p1 = 0.7 bar, T1 =...
Carbon dioxide (CO2) is compressed in a piston–cylinder assembly from p1 = 0.7 bar, T1 = 280 K to p2 = 14 bar. The initial volume is 0.2 m3. The process is described by pV1.25 = constant. Assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the work and heat transfer for the process, each in kJ, using constant specific heats evaluated at 300 K, and data from Table A-23.
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 piston-cylinder assembly containing 3 kg of an ideal gas undergoes a constant pressure process from...
A piston-cylinder assembly containing 3 kg of an ideal gas undergoes a constant pressure process from an initial volume of 48 m3 to a final volume of 30 m3 . During the process, the piston supplies 1.2 MJ of work to the gas. The gas has a constant specific heat at constant volume of 1.80 kJ/(kg∙K) and a specific gas constant of 1.48 kJ/(kg∙K). Neglect potential and kinetic energy changes. a. Determine the initial specific volume of the gas in...
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 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.
A tank of 0.1 m3 volume initially containing nitrogen at 25 C and 1 bar will...
A tank of 0.1 m3 volume initially containing nitrogen at 25 C and 1 bar will be filled with compressed nitrogen at a rate of 20 mol/s. The nitrogen coming from the compressor and into the tank is at an absolute pressure of 110 bar and a temperature of 80 C. The filling process occurs sufficiently rapidly that there is negligible heat transfer between the gas and the tank walls, and a valve is closed to stop the filling process...
Ideal gas ethylene undergoes a reversible adiabatic compression by which its temperature increases from T1 =...
Ideal gas ethylene undergoes a reversible adiabatic compression by which its temperature increases from T1 = 300 K to T2 = 450 K. The molar entropy in the initial state is given as s1 = 100 J K–1 mol–1, and here, for ethylene, cp = ?T + c0 with ? = 0.1 J K–2 mol–1 and c0 = 13.1 J K–1 mol–1. Determine the change of the molar entropy s2 – s1 and the change of the chemical potential ?2...
A rigid, well-insulated tank, with a volume of 0.057 m3 , contains air at p1 =...
A rigid, well-insulated tank, with a volume of 0.057 m3 , contains air at p1 = 1.4 bar, T1 = 280 K. The air is stirred by a paddle wheel, resulting in an energy transfer to the gas of magnitude 6.78 kJ. Assuming ideal gas behavior for the air, determine the final temperature, in K, and the final pressure, in bar. Neglect kinetic and potential energy effects
An insulated cylinder is filled with nitrogen gas at 25ºC and 1.00 bar. The nitrogen is...
An insulated cylinder is filled with nitrogen gas at 25ºC and 1.00 bar. The nitrogen is then compressed adiabatically with a constant pressure of 5.00 bar until equilibrium is reached. i. What is the final temperature of the nitrogen if it is treated as an ideal gas with molar heat capacity CP = 7/2 R ? ii. Calculate ΔH (in kJ mol-1 ) and ΔS (in J mol-1 K-1 ) for the compression. (Hint: Because the enthalpy is a state...
In a cylinder/piston arrangement, air is compressed in a reversible polytropic process to a final state...
In a cylinder/piston arrangement, air is compressed in a reversible polytropic process to a final state of 800 kPa, 500 K. Initially air is at 110 kPa and 25oC. During the compression process heat transfer takes place with the ambient maintained at 25oC. Assume air as an ideal gas (R =0.287 kJ/kg) and has constant specific heats of Cp = 1.004 kJ/kgK and Cv = 0.717 kJ/kgK. If the mass of air in the cylinder is 0.1286 kg, determine a)...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT