

7. What is the enthalpy of the R-134a in the container shown? [15 900 kg T...
Problem 3: A 9-m container is filled with 300 kg of R-134a at 10°C. What is the specific enthalpy of the R-134a in the container? Problem 4: a piston-cylinder device contains 0.6 kg of steam at 200 Cand 0.5 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. Show the process on a T-v diagram b) a) Find the final temperature c) Determine the volume change Problem 5:10 kg of R-134a at 320 kPa fills a...
9.4 kg of R-134a fill a O.7-m weighted piston-cylinder device at a pressure of 200 kPa. The container is now heated until the temperature is 30°C. Determine the initial temperature and final volume of R-134a. Use data from the steam tables. The initial temperature is [ °C. ]m3 The final volume is
9.4 kg of R-134a fill a O.7-m weighted piston-cylinder device at a pressure of 200 kPa. The container is now heated until the temperature is 30°C. Determine the...
four kg of R-134a at 550 kpa fills a rigid container whose volume is 15 L. determine the temperature and total enthalpy in the container. the container is now cooled until the pressure is 200 kpa. determine the temperature and total enthalpy when the cooling is completed.
50 kg of R-134a at s80 kPa is contained in a piston-cylinder device where V = 0.4 m^3. The system is cooled at constant pressure until the internal energy is half the initial. Determine: 1) Final Temperature (Tfinal) 2) Final Quality (Xfinal) 3) Final Volume (Vfinal)
9.4 kg of R-134a fill a O.7-m weighted piston-cylinder device at a pressure of 200 kPa. The container is now heated until the temperature is 30°C. Determine the initial temperature and final volume of R-134a. Use data from the steam tables. The initial temperature is [ °C. ]m3 The final volume is
0.4 kg of Refrigerant 134a initially fills a piston–cylinder device with a volume of 15 L at a pressure of 400 kPa. The cylinder is connected to a supply line through a valve. R-134a is flowing in the supply line at 900 kPa and 45°C. The valve is opened, and R-134a is allowed to enter the cylinder. The valve is closed when the volume of the cylinder is triple and the temperature in the cylinder reaches 15°C. During the process,...
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Problem 3 Consider a container divided by a partition into two chambers. The first chamber contains 15 kg of water at 350°C, 1.2 MPa. The other chamber contains 19 kg of water at 105 °C with 60 percent of the mass is in the liquid phase. The partition is now removed and the water in both chambers are allowed to mix until the system reaches a thermal equilibrium of 120°C. Determine: (a) The final pressure in the...
QUESTION 3 A 0.25m of saturated liquid refrigerant-134a at 80°C is contained in frictionless insulated piston-cylinder device as shown in Figure Q2(b). A paddle-wheel is placed inside the cylinder chamber to stir the refrigerant-134a and the paddle wheel transfer a total work of 245 kJ to the fluid. Moreover, a 440 V and 9 amp of resistor is also placed inside the cylinder chamber to heat the refrigerant-134a. With the aid of a P-V diagram, determine the time taken for...
Q-1 50 A piston-cylinder device contains 0.7 kg of steam at 450°C and 1.4 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. (a) Show the process on a T-v diagram. (b) Find the final temperature. (c) Determine the volume change.
PROBLEM #4 (30 pts) Consider a piston cylinder device that contains 87 kg of R-134a initially at 200 kPa and volume of 12m2. Heat transfer occurs and the volume at state 2 is one-half its original size. (a) Draw the schematic and define your system. (b) Show the energy transfer into/out of your system and write out the E-bal. Do not solve E-Bal: AU-Wb-Q (c) Determine the final temperature, in C (-10.09 C) (d) Find the change in total internal...