A 60,000 BTU/hr compressor is used to compress air. The air temperature is maintained at a constant 80 °F with this process as a result of heat being rejected to the surrounding which is at 72°F. What is the rate of entropy change of the air?

Q: water vapor enters an adiabatic turbine at a pressure of 6 mPa and a temperature of 500 C, the…

A: Steam inlet pressure, P1=6 MPa Steam inlet temperature, T1=500oC Steam outlet pressure, P2=100 kPa…

Q: Water -Boundary A piston-cylinder device initially contains 14 kg of water at 350 °C and 3.0 MPa.…

A: Given Data m=14 kg State 1: 3 MPa, 350°C W=3000 kJ Adiabatic process (Q=0) State 2:400 kPa

Q: Helium gas expands from 150 kPa, 450 K and 0.5 m3 to 100 kPa in a polytropic process with n = 1.667.…

A: Data given-  P1 = 150 kPa  T1 = 450K  V1 = 0.5 m3  P2 = 100 kPa  n = 1.667

Q: Q3: 1kg of air can expand reversibly in cylinder behind a piston in such a way that the temperature…

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Q: OS: A cylinder piston contains 100/ air at 110 kPa. The air is then compressed in a reversible…

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Q: Fifty grams of air is compressed from 100kpa and 25 degree Celsius to 1400 kpa in a reversible…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: Oxygen enters an insulated 12-cm-diameter pipe with a velocity of 50 m/s. At the pipe entrance, the…

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Q: 1kg of air can expand reversibly in cylinder behind a piston in such a way that the temperature…

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Q: A Carnot engine uses oxygen as its medium. The volumes at the beginning and end of the reversible…

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Q: Question attached

A: given data: The mass flow rate of the steam is m=10 kg/s˙. The pressure at the inlet is P1=6 MPa.…

Q: ume (Vi), and finally expanded at a constant pressure to the PV diagram of the eycle and then…

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Q: Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded…

A: PV diagram of the processes shown in the question-

Q: Consider the system shown in the figure. When the pins fall away, the gas expands against a constant…

A: Number of moles of the gas, n=10  Initial pressure Pi= 5atm External Pressure Pext = 1 atm T = 300 K…

Q: R-134a is initially at 600 kPa and 25°C. It undergoes a process during which the entropy is kept…

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Q: subjected to a reversible adiabatic compression process to a final volume of 0.01 m3.Assuming the…

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Q: Steam at 3.1 MPA and with 74.28C SH rejects 1973.36 KJ/kg of steam heat at constant pressure…

A: Given data, P1 =Initial pressure of the steam = 3.1 MPa Tsat = Saturation temperature corresponding…

Q: Q:) A piston-e is first expanded isothermally to 600 kPa, 0.2 m' then compressed Polytropically with…

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Q: PROBLEM 3. In a constant volume process, 1.5 kg of air is cooled from 1,200 °K. KJ Change in entropy…

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Q: tank is initially filled with å saturate Heat is transfered from a source to the rises to ( 400…

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Q: 2.Steam enters an adiabatic turbine at 3MPa and 500C and exits at 30 kPa. If the efficiency of the…

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Q: A compressor (300 W) increases air pressure from atmospheric to 2,000 kPa. As the compressor…

A: as given that the outer casing is heated so the process is not adiabatic.

Q: gas with cp = 5.2 kJ/kg.K and R = 2.056 kJ/kg.K initially at 2000 kPa, 3m3 and 115oC undergoes an…

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Q: For a process with 1500 kJ of heat transfered out of a system at an interface temperature of 300K,…

A: The heat transfer from the system, (QR)=-1500 kJThe interface temperature, (Ti)=300 KDetermine the…

Q: steam at 3.5 MPa with a quality of 89%, enters an adiabatic diffuser with velocity of 30.5 m/s and…

A: Diffuser Diffuser is the device which converts the kinetic energy into pressure energy. In this…

Q: Hi, can you please help me with this entropy problem?

A: (a) Entropy generation is 0 .(b) Entropy generation is −2kJ/K .Explanation:Initial condition,Volume…

Q: :A cylinder piston contains 100/ air at 110 kPa. The air is then compressed in a reversible…

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Q: At the beginning of a cycle using air, the pressure, volume and temperature are 550 kN/m 2 , 0.025 m…

A: The given values are- P1=550kPa , V1=0.025 m3, T1=288 KT2=477 K, T3=393 K, T4=288 K,  Cp= 1  kJ/kgK…

Q: Air at 130 kPa and 50oC expands isentropically to 100 kPa. Find its final temperature.

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Q: Pressure remains constant at 689.5 kPa while the volume changes from 0.567 m3 to 0.283 m3. Find the…

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Q: a closed system contained a copper block of density 9.96g/cm3 at 25 degrees celsius in reversible…

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Q: Q5: :- A (0.5 m") rigid tank is initiálly pa with quality (0.4), Heat is transfered from a source to…

A: Volume V1=0.5m3Rigid volumeP1=200 KPa, X1=0.4P2=400 KPa,        Tsruce=350°C=308KStage 1 is we…

Q: Draw Pv and Ts diagram of reversible isentropic process. Write the relationship between…

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Q: Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded…

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Q: The refrigerant medium (R134a) was compressed from T = 0°C and s = 1.76kJ/kg with the entropy…

A: To solve this problem, we'll use the properties of refrigerant R134a and the principles of…

Q: 3. An empty 100-L tank is connected to a line flowing air (an ideal gas) at 300 K and 6 MPa. The…

A: Given data as per question volume(v1) =100 L=0.1 m3T1=300 KP1=6 Mpap2=5…

Q: Steam enters an adiabatic turbine at 3MPa and 500C and exits at 30 kPa. If the efficiency of the…

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.