Question

Question 1 Nitrogen (molecular weight 28) expands reversibly in a cylinder behind a piston at a...

Question 1

Nitrogen (molecular weight 28) expands reversibly in a cylinder behind a piston at a constant pressure of 1.05 bar. The temperature is initially at 27 °C. It then rises to 500 °C; the initial volume is 0.04 m3. Assuming nitrogen to be a perfect gas and take Cp = 1.045 kJ/kg K, calculate the:

a) mass of nitrogen

b) work done by nitrogen

c) heat flow to or from the cylinder walls during the expansion

Homework Answers

Answer #1

please do not forget to rate the solution

Thanks

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
In one stroke of a reciprocating compressor, Nitrogen is isothermally and reversibly compressed in a piston...
In one stroke of a reciprocating compressor, Nitrogen is isothermally and reversibly compressed in a piston + cylinder from 298 K and 20 bar to 200 bar. Assume 2 moles of gas are processed per stroke, and the molecular weight of the Nitrogen is 28 kg/kmol, compute the heat removal (Q) and work (WEC) required in kJ/kg.
A well-insulated (no heat transfer) piston cylinder contains 2 kg of saturated water vapor at 1...
A well-insulated (no heat transfer) piston cylinder contains 2 kg of saturated water vapor at 1 MPa. Steam expands reversibly until the pressure drops to 0.5 MPa. Find the final temperature of water and the work done during the expansion in kJ.
Oxygen gas is contained in a piston cylinder assembly at an initial pressure of 1000 kPa...
Oxygen gas is contained in a piston cylinder assembly at an initial pressure of 1000 kPa and expands from 0.2 m3 to 1.0 m3 by a process where PV = constant. The gas has an internal energy change of -200 kJ. Calculate the work (kJ) and the heat transfer (kJ) done during the process.
A 6.0-cm-diameter cylinder of nitrogen gas has a 4.0-cm-thick movable copper piston. The cylinder is oriented...
A 6.0-cm-diameter cylinder of nitrogen gas has a 4.0-cm-thick movable copper piston. The cylinder is oriented vertically, as shown in the figure, and the air above the piston is evacuated. When the gas temperature is 15 ∘C , the piston floats 20cm above the bottom of the cylinder. A. What is the gas pressure? B. How many gas molecules are in the cylinder? C.  Then 1.5 JJ of heat energy are transferred to the gas. What is the new equilibrium temperature...
A cylinder with a moveable piston on top, free to move up and down, contains one...
A cylinder with a moveable piston on top, free to move up and down, contains one mole of an ideal gas initially at a temperature of Ti = 3.8°C. The cylinder is heated at a constant pressure of 1.00 atm, and it expands to seven times its original volume. (a) Calculate the new temperature Tf of the gas (in K). (No Response) K (b) Calculate the work done (in kJ) on the gas during the expansion.
An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one...
An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one side of the piston is 1 m3 of a gas at 300 K, 2 bar. On the other side is 1 m3 of the same gas at 300 K, 1 bar.The piston is released and equilibrium is attained, with the piston experiencing no change of state. Employing the ideal gas model for the gas, determine (b) the final pressure, in bar. (c) the amount...
The volume of 0.850 kg of argon (MW = 40) in a closed piston-cylinder device is...
The volume of 0.850 kg of argon (MW = 40) in a closed piston-cylinder device is initially 0.500 m3. Now the gas is expanded at a constant pressure of 165.0 kPa to a volume of 1.30 m3. Note: The IUPAC sign convention for work is used. Work into the system has a positive value. What is the moving boundary work? kJ What is the heat interaction? Assume Cp(T)= 21 kJ/kmol·K. kJ
A cylinder with a piston contains 0.100 mol of nitrogen at 2.00×105 Pa and 320 K...
A cylinder with a piston contains 0.100 mol of nitrogen at 2.00×105 Pa and 320 K . The nitrogen may be treated as an ideal gas. The gas is first compressed isobarically to half its original volume. It then expands adiabatically back to its original volume, and finally it is heated isochorically to its original pressure. A) Find the work done by the gas during the initial compression B) Find the heat added to the gas during the initial compression...
A cylinder with a piston contains 0.160 mol of nitrogen at 1.80×105 Pa and 310 K...
A cylinder with a piston contains 0.160 mol of nitrogen at 1.80×105 Pa and 310 K . The nitrogen may be treated as an ideal gas. The gas is first compressed isobarically to half its original volume. It then expands adiabatically back to its original volume, and finally it is heated isochorically to its original pressure. a.) Find the work done by the gas during the initial compression. b.)Find the heat added to the gas during the initial compression. c.)Find...
A cylinder with a moveable piston holds 1.20 mol of argon at a constant temperature of...
A cylinder with a moveable piston holds 1.20 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 145 kPa. (a) Find the final volume of the gas. (answer in: m3) (b) Find the work done by the gas. (answer in: kJ) (c) Find the heat added to the gas. (.. kJ)