A two-phase liquid–vapor mixture of H2O, initially at 1.0 MPa with a quality of 90%, is contained in a rigid, wellinsulated tank. The mass of H2O is 2 kg. An electric resistance heater in the tank transfers energy to the water at a constant rate of 60 W for 1.95 h. Determine the final temperature of the water in the tank, in °C.

Q: A gas in the initial state of p 75 psia and V, = 5 ft. undergoes a process to p2 = 25 psia and V2 =…

A: Given Initial pressure = 75 psia Initial volume = 5 ft3 Final pressure = 25 psia Final volume = 9.68…

Q: 1) A piston-cylinder device contains 2.2 kg of nitrogen initially at 100 kPa and 25°C. The nitrogen…

A:

Q: Water contained in a piston-cylinder assembly, initially at 300°F, a quality of 70%, and a volume of…

A: GivenT=300oFx=70%V=6 ft3Q˙=0.3Btu/s

Q: Argon is initially at 300 K with a specific volume of 0.3 m3/kg. It is then isentropically expanded…

A: Argon is a monoatomic ideal gas. For such gases, the ratio of specific heats (γ) is 5/3. The initial…

Q: 6.0 kg/s of a mixture of nitrogen and carbon dioxide containing 10% of nitrogen by mole, undergoes a…

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Q: 300 grams of Ammonia (NH3) is contained in a linear spring-loaded piston-cylinder device as…

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Q: Water is contained in a closed, rigid, 0.25 m3 tank at an initial pressure of 500 kPa and a quality…

A: This is a case of a constant volume heating process. Only pressure and temperature will change.…

Q: Steam, initially at 5 MPa, 280°C undergoes a polytropic process in a piston–cylinder assembly to a…

A: Given    Pressure, P1 =  5 MPa                   P2 =20 MP Temperature, T1 = 280°C = 503 K Find Heat…

Q: 01: A piston-cylinder system contains 0.25 m3 of water at 2.1 MPa and 100°C. It is heated at…

A: Given data  A piston-cylinder system =  0.25 m of water at 2.1 MPa and 100°C. It is heated at…

Q: ngerar me of the tank is 1.8 m and heat is transferred until the refrigerant is saturated vapor at…

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Q: A cylinder-piston apparatus contains nitrogen initially at 20 bar, 107ºC and 0.3 m ^ 3. The piston…

A: Given: Initial condition of the nitrogen are: 20 bar, 107ºC and 0.3 m ^ 3 Final pressure of the…

Q: A piston cylinder contains 0.72 kg of air initially at 600 kPa and 225 °C, now the air expands in a…

A: GIVEN DATA- MASS m=0.72kg P1=600KPa T1=225'C=225+273=498K P2=125KPa T2=25'C=25+273=298K WE HAVE TO…

Q: The three friction disks shown are made of the same material and have the same thickness. It is…

A: The number of revolutions required.Given:The weight of the disk A is .The radii of the disks are…

Q: Steam, initially at 5 MPa, 280°C undergoes a polytropic process in a piston–cylinder assembly to a…

A:

Q: A piston-cylinder assembly contains 0.4 lb of air initially at a pressure of 30 lb/in² and a…

A: Given that: m = mass of air inside the cylinder = 0.4 lb P1 = 30 lbf/in2 T1 = 200 oF k = specific…

Q: 10. A gas initially at 15 psia and 2 cu ft undergoes a process to 90 psia and 0.60 cu ft, during…

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Q: Water contained in a closed tank, initially saturated vapor at 150°C, undergoes an isothermal…

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Q: Water is contained in a closed, rigid, 0.25 m3 tank at an initial pressure of 500 kPa and a quality…

A:

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

A: Given: M=44 kg/kMolP1=3.7barV1=0.085m3V2=0.02 m3cv=0.63 kJ/kgK

Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

A: superheated water at  P1 = 1 MPa T1 = 300 °C = 300+273 = 573 K final temperature  T2 = 100°C =…

Q: Oxygen    gas initially    at    355 K    and    1.50 bar    undergoes the    following    cyclic…

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Q: A certain gas with Cp = 0.529 Btu/lb.R and R = 92.6 ft.lbf/lbm°R expands from 5 ft3 and 80°F  to  15…

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Q: ethane with a mass of 1.04 kg is contained in a piston-cylinder and expands isentropically from…

A: Given data: m=1.04 kgT1=1095.93°CT2=37.49°C Need to determine the work done.

Q: A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0028 ft3 of saturated…

A: Given that: p1 = 70 lbf/in2 Vf1 = 0.0028 ft3 Vg1 = 1.5 ft3 A paddle work is done until the mixture…

Q: Refrigerant-134a A rigid tank contains saturated liquid and vapor mixture of Refrigerant-134a at 24…

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Q: A pure substance at 8 MPa and 400°C is having a specific internal energy of 2864 kJ/kg and a…

A:

Q: A piston-cylinder assembly contains 0.4 lb of air initially at a pressure of 30 lb/in² and a…

A: Given data: m=0.4 lbP1=30 lbf/in2T=200°Fk=1.4V2=2V1 Need to determine the work and heat transfer.

Q: A piston-cylinder assembly initially contains 2 m3 of water vapor at 1.8 MPa pressure and 500 °C…

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Q: Carbon dioxide is contained in a piston-cylinder arrangement. It is initially at 6 bars and 380K. It…

A: P1= 6 barT1= 380 KT2= 298 KvP1.2= C

Q: Please show complete (not shortcut) solution with derivation of formulas. Two tanks are connected…

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Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

A:

Q: Two kg of air, initially at 500 kPa, 350K, and 4 kg of carbon monoxide (CO) initially at 200kPa,…

A: Given data is

Q: Please solve the following question for practice, I just want to check my answer and make sure I…

A: The objective of the question is to determine the mass of the iron. This can be achieved by applying…

Q: Find the heat transfer to the sealed container. b) Find the exergy that disappears during the…

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Q: An automobile gasoline tank holds 20 kg of gasoline. When the gasoline burns, 81 kg of oxygen is…

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Q: A rigid container contains 0.29 kg of hot saturated vapour at an unknown initial pressure P1.  The…

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Q: A 2.170-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until…

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Q: A piston-cylinder system contains 0.3 m³ of water at 2.4 MPa and 150°C. It is heated at constant…

A:

Q: A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0022 ft3 of saturated…

A:

Q: A 6.4kg mass of saturated liquid-vapor mixture of water is contained within a closed system in a…

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Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.