A 2-ft3 rigid tank contains saturated refrigerant- 134a at 160 psia. Initially, 5 percent of the volume is occupied by liquid and the rest by vapor. A valve at the top of the tank is now opened, and vapor is allowed to escape slowly from the tank. Heat is transferred to the refrigerant such that the pressure inside the tank remains constant. The valve is closed when the last drop of liquid in the tank is vaporized. Determine the total heat transfer for this process.

Q: A 2009 L tank contains 20 kg of R-134a at 320 KPa. The tank valve is opened until the volume is…

A: A 2009 L tank contains 20 kg of R-134a at 320 KPa. The tank valve is opened until the volume is…

Q: The radiator of a steam heating system has a volume of 150L and is filled with superheated vapor at…

A:

Q: A 4-L pressure cooker has an operating pressure of 175 kPa. Initially, one-half of the volume is…

A: Consider this system as a control volume system. The energy associated with the fluid is internal…

Q: A 20-ft3 rigid tank initially contains saturated refrigerant- 134a vapor at 160 psia. As a result of…

A: Write the given information. Write the properties of the refrigerant R134a at 160 psia. Write the…

Q: A 2009 L tank contains 20 kg of R-134a at 320 KPa. The tank valve is opened until the volume is…

A: A 2009 L tank contains 20 kg of R-134a at 320 KPa. The tank valve is opened until the volume is…

Q: An air-conditioning system is to be filled from a rigid container that initially contains m1 kg of…

A:

Q: A 5.2m3 tank contains nitrogen, which is evacuated from 100kPag to a pressure of 98kPag vacuum.…

A: Answer: The mass of pumped out nitrogen is 6.3274 kg.  Hence, the correct answer is option (a).

Q: A piston-cylinder containing steam at 700 kPa and 2500C undergoes a constant pressure process until…

A: Given Data The initial pressure of the steam is: Pi=700 kPa The initial temperature of the steam…

Q: An insulated piston–cylinder device contains 0.05 m3 of saturated refrigerant- 134a vapor at 0.8-MPa…

A: Given data: The refrigerant inside the cylinder is R-134a The volume present inside the cylinder is…

Q: Steam is contained in a 4-L volume at a pressure of 1.5 MPa and a temperature of 400 C. If the…

A:

Q: The state of liquid water is changed from 50 psia and 50°F to 2000 psia and 100°F. Determine the…

A: Given Initial pressure Pi = 50 psia Initial temperature Ti = 50o F Final pressure Pf = 2000 psia…

Q: A 1-m tank containing air at 10 °C and 350 kPa is connected through a valve to another tank…

A: Volume of the first tank is, V1=1 m3. Temperature of the air in first tank is, T1=10 °C. Pressure of…

Q: Is the energy required to heat air from 295 to 305 K the same as the energy required to heat it from…

A:

Q: 5. 10 kg of R-134a at 300KPA fills a rigid container whose volume is 14 L. Determine the temperature…

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Q: A piston–cylinder device initially contains 2 kg of refrigerant-134a at 800 kPa and 80°C. At this…

A: Given: The initial mass of the refrigerant in the piston-cylinder device is m1=2 kg. The final mass…

Q: A frictionless piston–cylinder device contains 16 lbm of superheated water vapor at 40 psia and…

A:

Q: A 1 m^ 3 rigid tank contains hydrogen at 250 kPa and 420 K. The gas is now cooled until its…

A: The answer is given below

Q: A piston–cylinder device initially contains 2 kg of refrigerant-134a at 800 kPa and 80°C. At this…

A: Given, P1 = 800 kPa m1 = 2 kg T1= 80°C= 80+273= 353 K P2 = 500 kPa T2 = 20°C = 20+273= 293 K m2=…

Q: During an expansion process, the pressure of a gas changes from 15 to 100 psia according to the…

A: The initial pressure is given as,   Pi=15 psia   The initial volume is given as,   Vi=7 ft3   The…

Q: A rigid vessel contains 5.0 kg of wet steam at 0.4 MPa. After the addition of 9585 kJ the steam has…

A: From the superheated properties table, write the properties of the steam at 2 MPa and 700oC at the…

Q: 2) A 0.8 m rigid tank contains refrigerant-134a initially at 100 kPa and 25 percent quality. Heat is…

A: Data given-  V = 0.8 m3  P1 = 100 kPa  X1 = 0.25  P2 = 500 kPa

Q: A rigid vessel contains 5 kg of wet steam at 0.4 Mpa. After the addition of 9,585 J the steam has a…

A: Given data: The mass of the wet steam is (m)= 5 kg The initial pressure of the wet steam is (P1) =…

Q: Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 0.7…

A: Given data: *The saturated vapour pressure of the refrigerant is P=100 kPa. *The flow rate of the…

Q: The radiator of a steam heating system has a volume of 20 L and is filled with superheated water…

A: Given: The volume of the system is V=20 L. The initial temperature and pressure are T1=200 ⁰C and…

Q: rigid vessel contains 5 kg of superheated refrigerant-134a at 800 kPa and 110C. Determine the volume…

A: Given Data P=800 kPa T=110°C m=5 kg

Q: Carbon dioxide gas enters a throttling valve at 5 MPa and 100°C and leaves at 100 kPa. Determine the…

A: Given data P1=5 MPaP2=100 KPaT1=100°c

Q: Steam enters a turbine at 6 MPa and 450°C at a rate of 33 kg/s and exits at 50 kPa as saturated…

A:

Q: A 0.8-m3 rigid tank contains carbon dioxide (CO2) gas at 250 K and 100 kPa. A 500-W electric…

A: Given, Before Heater is on, P1 = 100 kPa T1 = 250 K V1 = 0.8 m3 After Heater is on, P2 = 175 kPa…

Q: A piston–cylinder device contains 0.85 kg of refrigerant134a at –10°C. The piston that is free to…

A: Given Data Mass of refrigerant-134a ,m= 0.85Kg mass of piston, M=12Kg Diameter of piston, D=25cm…

Q: A balloon initially contains 50 m³ of helium gas atmospheric conditions of 100 kPa and 27°C. The…

A: Given data: Vi=50m3Ti=27°c   Pi=100kPaV=kP linear relationshipTo determine:- final temperature in…

Q: 25 kg of refrigerant 134a, at 300 kPa, fill a rigid container whose volume is 30 L. Determine the…

A: Initially we calculate the total specific volume of the mixture.…

Q: Liquid water at 200 kPa and 20 degress celcius is heated in a chamber by mixing it with superheated…

A: Draw the schematic diagram of the mixing chamber as shown in Figure (1).

Q: Determine the work done in KJ in a piston which has a constant pressure of 25 psi. Its initial…

A:

Q: A 3000 cm 3 tank initially contains compressed air at 600 kPag and 28 o C. Determine the mass of air…

A: This problem is related to fluid mechanics. Fluid mechanics is the subject of mechanical engineering…

Q: The radiator of a steam heating system has a volume of 20 L and is filled with superheated water…

A: Given, V = 20 L = 0.02 m3 P1 = 200 kPa T1 = 200°C T2 = 80°C The system undergoes constant volume…

Q: A rigid tank with a volume of 0.1 m 3 contains water at 1.6 MPa and 300 °C. The tank is heated but,…

A: Given Data→ Volume of the rigid tank (V) =0.1 m3 Initial Pressure and temperature of water in rigid…

Q: A piston–cylinder device initially contains 0.6 kg of steam with a volume of 0.1 m3 . The mass of…

A: Given, a piston- cylinder device with the following data. Initial Volume of steam, V1=0.1m3 Mass of…

Q: A 200-m3 rigid tank contains compressed air at 1 MPa and 300 K. Determine how much work can be…

A:

Q: A rigid vessel contains 5 kg of wet steam at 0.4 MPa. After the addition of 9585 kJ the steam has a…

A:

Q: A 0.05-m3 rigid tank initially contains refrigerant134a at 0.8 MPa and 100 percent quality. The tank…

A: Given Volume of tank = 0.05 m3 Pressure in tank = 0.8 MPa Quality = 100% Valve pressure = 1.2 MPa…

Q: A student living in a 4 - m 5 - m 3 - m dormitory room turns on her 100 - W fan before she leaves…

A: Given, V = 4 m × 5 m × 3 m = 60 m3W˙= 100 Wt = 8 h = ( 8 × 3600) sP1 = 100 kPaT1 = 20 °C = 293 K…

Q: A 12-ft3 rigid tank contains refrigerant-134a at 30 psia and 55 percent quality. Heat is transferred…

A: Given Data⇒volume of tank=12 ft3P1=30 Psiax1=0.55P2=50 Psia In solutions there is no heat loss from…

Q: Initially, 200 L of saturated vapor refrigerant-134a in a piston. The piston is free to move, and…

A:

Q: A 0.8-m3 rigid tank contains carbon dioxide (CO2) gas at 250 K and 100 kPa. A 500-W electric…

A: Given Data⇒P1=100 KPaV=0.8 m3For CO2COnsider gas constant  R=0.189JkgT1=250 KP2=175 KPaProblem…

Q: A 3-m3 rigid tank contains nitrogen gas at 500 kPa and 300 K. Now heat is transferred to the…

A:

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.