Question

In: Mechanical Engineering

2 kilogram of R-134a fills a 0.14-m3 weighted piston–cylinder device at a temperature of –26.4°C. The...

2 kilogram of R-134a fills a 0.14-m3 weighted piston–cylinder device at a temperature of –26.4°C. The container is now heated until the temperature is 100°C. Determine the final volume of the R-134a.

Solutions

Expert Solution

please give some positiverating... i have less cf score... thank you so much..

samet mamat answered 1 year ago
Next > < Previous

Related Solutions

A piston–cylinder device contains 0.85 kg of refrigerant-134a at -10°C. The piston that is free to...
A piston–cylinder device contains 0.85 kg of refrigerant-134a at -10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant-134a until the temperature is 10°C. Determine (a) the final pressure, (b) the change in the volume of the cylinder, and (c) the change in the enthalpy of the refrigerant-134a.
100 kg of R-134a at 320 kPa are contained in a piston-cylinder device whose volume is...
100 kg of R-134a at 320 kPa are contained in a piston-cylinder device whose volume is 7.530 m3. The piston is now moved until the volume is one-half its original size. This is done such that the pressure of the R-134a does not change. Determine the final temperature and the change in the total internal energy of the R-134a. (Round the final answers to two decimal places.)
100 kg of R-134a at 200 kPa are contained in a piston–cylinder device whose volume is...
100 kg of R-134a at 200 kPa are contained in a piston–cylinder device whose volume is 12.766 m3. The piston is now moved until the volume is one-half its original size. This is done such that the pressure of the R-134a does not change. Determine the final temperature and the change in the total internal energy of R-134a. Use data from the steam tables. The final temperature is  °C. The total change in internal energy is  kJ/kg.
One kilogram of water is contained in a piston-cylinder device at 100 degC. The piston rests...
One kilogram of water is contained in a piston-cylinder device at 100 degC. The piston rests on lower stops such that the volume occupied by the water is 0.835 m3. The cylinder is fitted with an upper set of stops. When the piston rests against the upper stops, the volume enclosed by the piston-cylinder device is 0.841 m3. A pressure of 200 kPa is required to support the piston. Heat is added to the water until the water exists as...
One kilogram of Refrigerant 134a vapor initially at 2 bar and 20°C fills a rigid vessel....
One kilogram of Refrigerant 134a vapor initially at 2 bar and 20°C fills a rigid vessel. The vapor is cooled until the temperature becomes -24°C. There is no work during the process. Let To = 20°C, po = 0.1 MPa and ignore the effects of motion and gravity. 2. For the refrigerant, determine the change in exergy, in kJ. Note: for part 1: q=-98.086kj please find part two- the change in exergy in kj
A mass of 0.3 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 240...
A mass of 0.3 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 240 kPa. Initially, 70 percent of the mass is in the liquid phase. Now heat is transferred to the refrigerant at constant pressure until the cylinder contains vapor only. (a) show the process on a P-v and T-v diagrams with respect to saturation lines. Determine; (b) the volume occupied by the refrigerant initially, (c) the work done, and (d) the total heat transfer.
A mass of 0.3 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 240...
A mass of 0.3 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 240 kPa. Initially, 70 percent of the mass is in the liquid phase. Now heat is transferred to the refrigerant at constant pressure until the cylinder contains vapor only. (a) show the process on a P-v and T-v diagrams with respect to saturation lines. Determine; (b) the volume occupied by the refrigerant initially, (c) the work done, and (d) the total heat transfer.
The volume of 1 kg of helium in a piston-cylinder device is initially 7 m3 ....
The volume of 1 kg of helium in a piston-cylinder device is initially 7 m3 . Now helium is compressed to 3 m3 while its pressure is maintained constant at 150 kPa. Determine the initial and final temperatures of helium as well as the work required to compress it, in kJ. You may assume deal gas behavior.
A piston–cylinder device initially contains 2 kg water in 1 m3 at 500 kPa. The system...
A piston–cylinder device initially contains 2 kg water in 1 m3 at 500 kPa. The system then cools down and the volume drops to half and pressure of 300 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 500 kPa is required to move it. (a) Show the process on a P-v, T-v and P-T diagrams with respect to saturation lines and determine, (b)...
One-quarter kilogram of air is compressed in a piston-cylinder device from 350 K and 150 kPa...
One-quarter kilogram of air is compressed in a piston-cylinder device from 350 K and 150 kPa to 550 K and 900 kPa. Determine a. The entropy change, in KJ/K. b. The direction of any heat transfer by using the entropy balance. c. What-if scenario: If this process occurs adiabatically, is this process reversible, irreversible, or impossible process? Please answer the nature of this process and why.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT