An insulated vertical cylinder-piston device contains 0.8 m3 of refrigerant 134a at 1.2 MPa and 120 ° C. With a linear (compression) spring, all of its force is applied to the plunger at that moment. A valve connected to the cylinder opens and refrigerant escapes. The spring is loosened as the plunger is lowered, and the pressure and volume drop to 0.6 MPa and 0.5 m3, at the end of the process. Determine: a) the amount of refrigerant that escaped b) the final temperature of the coolant

Q: In a piston-cylinder assembly, 0.2 MPa pressure, 0.5 kg of Refrigerant 134 (SA-134) at 20 °C is…

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Q: Use image below PART C- Evaluate the useful work (i.e., the work corrected for the work against the…

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Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

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Q: the magnitude of the work required for the process

A: Given; An ideal gas undergoes  a reversible process;In which the pressure varies linearly with…

Q: 6. A closed gaseous system undergoes a reversible process in which 28 BTU of heat are rejected and…

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Q: Q3//500 litre of air is compressed in a cylinder fitted with a frictionless piston from 150 KPa and…

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Q: A piston-cylinder assembly contains 3 lb of water vapor, initially at 300F and 20 lbf/in2 is…

A: To find (a) The total work done during the process W. (b) The total change in entropy during the…

Q: Two tank are connected, as shown in the figure below, both containing water. Tank A contains 0.5 kg…

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Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: vapor pressure = 200kPa loss pf heat = 10kJ PRESSURE RISES TO = 300KPA

Q: Air is compressed in a piston-cylinder device in a eversible isothermal process. If the work done by…

A: first law of thermodynamics: The first law of thermodynamics is stated as energy can neither be…

Q: A tank contains R134a initially at 3 degrees Celsius with a quality of 0.25. the pressure is held…

A: Given: Initial state T1=3oCx1=0.25 Supply line: Psupply=975 kPaTsupply=118oC Final State: m2=20…

Q: Ten lbm per min of fluid is handled in a reversible steady flow manner by a thermodynamic system…

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Q: A device submitted to the Pa- tent Office is shown schemati- cally in the figure to the right. Its…

A: To determine if steady-state operation of this device is thermodynamically permissible, we need to…

Q: 4-20 A piston-cylinder device contains 0.15 kg of air initially at 2 MPa and 350°C. The air is first…

A: Given:The mass of the air, The initial pressure, The initial temperature, The pressure after…

Q: As shown in the figure below, water behind a dam enters an intake pipe at a pressure of 24 psia and…

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Q: Ten lbm per min of fluid is handled in a reversible steady flow manner by a thermodynamic system…

A: The given values are -m=10 lbm, ∆h=175 ft , g=32 fts2The potential energy change is given as…

Q: certain quantity of gas with an initial condition of 14 bar, 0.08 m3, and 450 K expands at constant…

A: Given Data State 1: 14 bar, 0.08 m3 and 450 K State 2: 0.25 m3, 14 bar

Q: Water, initially a saturated liquid at 100°C, is contained in a piston-cylinder assembly. The water…

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Q: solle не An adiabatic air compressor compresses 15 L/s of air at 1 bar and 30 °C to 8 bar and 350…

A: The specific heat ratio (k) for air is a constant value and it is 1.4. This value is used in the…

Q: Question 1 A mass of 0.7 kg of air undergoes two reversible processes in a piston-cylinder device as…

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Q: Calculate the boundary work done by the system during this process

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Q: 5. An ideal compressor compresses 12 kg/min of air isothermally from 99 kPa and a specific volume of…

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Q: A 40-lb aluminum bar, initially at Ta = 150oF, is placed in a tank together with 190 lb of liquid…

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Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

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Q: 1-kg copper part, initially at Tc= 400 degrees C, is plunged into a tank containing 5 kg of liquid…

A: Given Data  Mass of the copper, m=1Kg Tc=400°C Cc= 0.385 kJ/kg-K Mass of the water, mw=4Kg Tw= 30°C…

Q: A piston-cylinder device contains 0.5 kg of air initially at 3 MPa and 250°C. The air is first…

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Q: 3 kg of water, initially at 300 kPa and 200 degrees Celsius (state 1), supports a free floating…

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Q: A rigid tank of volume 0.018 m' is connected through a closed valve to a vertical cylinder fitted…

A: Given: The volume of the air inside the tank, V1 = 0.018 m^3 The pressure of air inside the tank, P1…

Q: The boiler of a steam generator has a total volume of 2 m3, and initially contained 1.5 m3 of water…

A: Given,   P1 = 1 kgf/cm2 = 0.098 MPa;  P2 = 56 kgf/cm2 = 5.491 MPa; V = 2 m3 Volume of water = 1.5 m3…

Q: Oxygen (molar mass 32 k g / k m o l ) expands reversibly in a cylinder behind a piston at a constant…

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Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

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Q: A gas cylinder with interior volume 11.6 L holds compressed air at 17.4 MPa. The cylinder is joined…

A: Given: Volume of the gas cylinder: →V1=11.6 L=0.0116 m3 Pressure in the gas cylinder: →P1=17.4 MPa…

Q: A rigid container contains m = 3 kg of air. The air changes from an initial state of P1 = 0.5 MPa…

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Q: Air with a pressure of 2 MPa and a temperature of 250 C (0.5 kg of PV^ 1.25 = expands while…

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Q: A pump handling a liquid raises its pressure from 1 bar to 30 bar. Take the density of the liquid as…

A: Given, Initial pressure = P1 = 1 bar = 1 x 105 Pa Final pressure = P2 = 30 bar = 30 x 105 Pa Density…

Q: As shown in the figure below, water behind a dam enters an intake pipe at a pressure of 24 psia and…

A: Given data as per question Pressure at inlet = 24 psia Velocity =5 ft/s z1 =120 ft p2 =19 psia v2…

Q: Oxygen (molar mass 32 k g / k m o l ) expands reversibly in a cylinder behind a piston at a constant…

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Q: Question : Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature…

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Q: Four pounds of steam initially dry and saturated expand isentropically in a non-flow process from an…

A: Given: Mass of the steam, ms=4 lb initial pressure, P1=275 psia final pressure, P2=125 psia

Thermodynamic Relations

Thermodynamics is the division of physics that deals with the transfer of any kind of energy, whether it be heat, temperature, or work, from one object to another.