A vertical piston–cylinder device initially contains 0.12 m3 of helium at 20°C. The mass of the piston is such that it maintains a constant pressure of 200 kPa inside. A valve is now opened, and helium is allowed to escape until the volume inside the cylinder is decreased by one-half. Heat transfer takes place between the helium and its surroundings at 20°C and 95 kPa so that the temperature of helium in the cylinder remains constant. Determine the exergy destroyed during this process.

Q: A piston cylinder system contains 3 moles of oxygen gas at 300K. The gas is compressed reversibly…

A: T1=300 Kno. of mole, n=3V1=0.06 m3V2=0.01 m3W=850 J

Q: Two rigid tanks are connected by a valve. Tank A contains 0.6 m^3 of water at 330 kPa and 90 percent…

A: Solution: Given Data: VA=0.6 m3PA=330 kPaxA=0.9VB=0.5 m3PB=250 kPaTB=250oCT∞=25oC   To Find: (a) The…

Q: Q1) Can the entropy of a closed system decrease during a reversible process ? Write down what needs…

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Q: A rigid tank contains an ideal gas at 40°C that is being stirred by a paddle wheel. The paddle wheel…

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Q: A vertical piston–cylinder device initially contains 0.12 m3 of helium at 20°C. The mass of the…

A: Write the given data.

Q: Exergy Destruction during Expansion of Steam. A piston-cylinder device contains 0.05 kg of steam at…

A: Given   Mass, m = 0.05 kg   Heat, Q = 2 kJ           T1 = 300 K Find   Exergy destroyed, x…

Q: In a chemical plant, O2 is compressed steadily from 30 °C and 1 bar to 5 bar. The flowrate of O₂ is…

A:

Q: 3. Consider a well-insulated horizontal rigid cylinder that is divided into two compartments by a…

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A: Given data as per question

Q: R-134a at 320 kPa and 40 C undergoes an isobaric process in a closed system until its quality is 45…

A: The change in internal energy, heat transfer, work done, and the entropy generated. Given: The…

Q: 2. During some actual expansion and compression processes in piston-cylinder devices, the gases have…

A:

Q: m = 1 lbmol/hr T₁ = 1000 °R m = 1 lbmol/hr p₂=2.72 atm W W T₂ = 1000 °R Q = 3000 Btu/hr P₁ = 1 atm m…

A: To check: The statement. Given: The machine is shown below.

Q: m3 of nitrogen contained in a cylinder behind a piston is initially at 1.2 bar and 15°C. The gas is…

A: Given:Volume of nitrogen, V=0.05 m3initial pressure of nitrogen, P1=1.2 barinitial temperature of…

Q: Water at 20 psia and 50F enters a mixing chamber at a rate of 300 lbm/min where it is mixed steadily…

A: There are two inlets and an outlet in the mixing chamber of the system. As the mass crosses the…

Q: Heat flows through a wall of a house at a steady-state on a day when the temperature of the outdoor…

A: From the given data,the question asked for total entropy generation. For that take inside and…

Q: As a result Of heat transfer to the surroundings durİng a constant-pressure process, 0.375 kg Of…

A: Given that,Process 1-2: Constant pressure heat rejection (Internally reversible)Mass = m = 0.375…

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

A: Given that ,  molar mass of Oxygen =32 kg/kmolConstant pressure = 3.06 bar Initial volume = 0.01…

Q: A 40-kg aluminum block initially at 227°C is brought into contact with a 40-kg block of iron at 50°C…

A:

Q: In a natural gas liquefaction plant, the liquefied natural gas (LNG) enters a cryogenic turbine at…

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Q: A small rigid storage tank with a volume of 0.12 m3 contains 0.9 kg of argon at 40°C. Heat transfer…

A: STEP 1: The volume of the tank is V = 0.12 m3. The mass of the argon is m = 0.9 kg. The initial…

Q: A rigid tank is divided into two equal parts by a partition. One part of the tank contains 1.5 kg of…

A: Here we will refer to the steam table to get the values of specific volume and entropy at the…

Q: Consider a closed, isolated system that consists of two substances 1 and 2 that both have constant…

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Q: A rigid tank is divided into two equal parts by a partition. One part of the tank contains 2.5 kg of…

A: To find: The entropy change of water during the process. Given  The mass of compressed liquid m=2.5…

Q: Q4/ 1 kg of gaseous CO2 contained in a closed system undergoes a reversible process at constant…

A: Given data m=1 kgCp=840 J/kg°CCV=600 J/kg°CdU=-45 kJ

Q: a tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A: Given:V1=0.01 m3saturated liquid at P1=0.8 MPaT2=200 °CP2=400 KPa

Q: A frictionless piston-cylinder device contains a saturated liquid-vapor mixture of water at 400K.…

A: Given data dQ = heat transfer = 960kJ Tair = 300K Twater = 400K We need to find => Total entropy…

Q: Under which condition does the combined entropy of two interacting systems remain constant? Group of…

A: the combined entropy of two interacting systems remain constant When there is no heat flow (meaning…

Q: A well-insulated rigid tank contains 3 lbm of a saturated liquid–vapor mixture of water at 35 psia.…

A:

Q: A container filled with 45 kg of liquid water at 95°C is placed in a 90-m3 room that is initially at…

A: Given, Mass of water, mw = 45 kg. Initial Temperature of water, T1 = 95°C = 95+273 = 368°K Volume of…

Q: A piston-cylinder device contains 13 kg of refrigerant-134a at 750 kPa and 70 ∘C. The refrigerant is…

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Q: 2 mol of an ideal gas expands from 1 L to 10 L reversibly and isothermally at 250 K. The work done…

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Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

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Q: Problem 2 An insulated piston-cylinder device contains 0.2 m³ of saturated refrigerant R-134a vapor…

A: The piston cylinder is insulated.The volume of saturated refrigerant vapor is .The initial pressure…

Q: Determine the reversible work in kJ when 6 moles of a gas expanded reversibly from 5 ft³ to 8 ft³ at…

A: Given question belongs to the subject Engineering Thermodyanamics and can be solved using concept of…