2. Cold R-134a is at 200 kPa, -10oC what is the specific volume? Repeat for a pressure of 210 kPa at the same T. Indicate the two states in a P-v diagram (sketch). 3. Determine P and x for CH4 at the following states a. T = 155 K, ν = 0.04 m3/kg; b. T = 250 K, ν = 0.15 m3/kg.


2. Cold R-134a is at 200 kPa, -10oC what is the specific volume? Repeat for a...
The refrigerant R-134a (CF3CH2F, tetrafluorethane) has a specific volume υs=0.0309 m3/kg at a pressure p=0.26 MPa. B. Calculate the molar mass of tetrafluorethane CF3CH2F. MR-134a = ????? g C. Determine the temperature T of tetrafluorethane. T = ???? K
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...
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
An adiabatic compressor pressurizes 11 kg/s of air from 60 kPa to 200 kPa. The specific volume and temperature of the air at the compressor inlet are 1.44 m3/kg and 27 C. At the outlet, the specific volume = 1 m3/kg. Cp for air = 1.005 lJ/kg/K. What is the power required to run the compressor?
Example # 01 4-43 100-kg of R-134a at 200 kPa are contained in a ps ton-cylinder device whose volume is 12.322m.The piston is now moved until the volume is one-half its ornginal 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
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.
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...
7. What is the enthalpy of the R-134a in the container shown? [15 900 kg T 10°C 8. A piston-cylinder device contains water at 600°F. If the volume of the system s 2.4264 fts and the mass of the water is 1 lbm, determine the final pressure and volume if the water is then cooled to 200°F at constant pressure. Draw this process on a P-V diagram. [15]
Water initially at 300 kPa and 250°C is contained in a constant-volume tank. The water is allowed to cool until its pressure is 150 kPa. On the P-vand T-v diagrams, sketch, with respect to the saturation lines, the process curve passing through both the initial and final states of the water. Label the end states on the process curve. Also, on both the P-vand T-v diagrams, sketch the isotherms passing through both states and show their values, in °C, on...
Please solve ONLY question (2) with providing explanations of
how you solve it.
You will see an example of what I’m asking for in Q4. A
Problem 2 (10 points) 15 kg of an ideal gas is contained in a piston-cylinder device at an initial pressure of 500 kPa and specific volume of 0.4 m3/kg. The gas is subsequently expanded to a specific volume of 1.3 m/kg During the expansion process, the pressure drops to 125 kPa and it is...