Initially a 0.5 m3 rigid tank contains Refrigerant-134a at 200 kPa and 40 percent quality. Then heat was transferred to the refrigerant from a source at 35 °C until the pressure rise to 400 kPa. Determine i) entropy change of the refrigerant, Sr, ii) entropy change of the heat source, Sh, iii) total entropy change for this process Stotal.

Q: Water undergoes an adiabatic and reversible process from 0.5 MPa, 5000C to 50 kPa. Calculate the…

A: Givenworking fluid -waterP1=0.5MPa =500kPaT1=500oC=773KP2=50kPa

Q: The initial conditions of 0.8 kg of carbon dioxide inside a piston-cylinder device are 300°C and 100…

A: Given:mass of cabon dioxide, m=0.8 kginitial pressure, P1=100 kPainitial temperature, T1=300o C or…

Q: A 1500 kW electrical heater is used to heat 25 kg of water (cp=4.186 J/kgK) lin an insulated bucket,…

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Q: 0.02 kg / s entering a radial flow compressor at 100 kPa and 280 K air is compressed to a pressure…

A: Given:Power required, P=2.732 kWmass flow rate of sir, m˙=0.02 kg/sP1=100 kPaT1=280 KP2=600…

Q: Air at 20℃, 100 kPa is compressed in a piston/cylinder without any heat transfer to a pressure of…

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Q: Steam @ 400 C and 1600 kPa enters a nozzle at a velocity of 28 m/s and leaves as saturated vapor at…

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Q: Consider air in a cylinder volume of 0.2 L at 7 MPa, 1800K. It now expands in a reversible…

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Q: Unit kg of steam is heated reversibly at constant pressure of 2.5MPa, a temperature of 252.3C and…

A: Given: The mass of the steam is m=1 kg, The initial pressure is P1=2.5MPa=2500 kPa, The final…

Q: Q2. A 0.8 m³ rigid tank contain carbon dioxide (CO₂) gas at 250K and 100 kPa. A 500W electric…

A: Note-As per policy only first three questions can be answered so resubmit for complete solution.At…

Q: There is air at a temperature of 300 K and a pressure of 150 kPa in a closed container of constant…

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Q: Find the enthalpy of steam at 0.1975 MPa with specific internal energy of 2700 kJ/kg

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Q: 1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the temperature is…

A: Question- 1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the…

Q: Steam at 7 bar, dryness fraction 0.96, is throttled-down to 3.5 bar. Solve for the change of entropy…

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Q: Find enthalpy if 5kg of certain gas go through a reversible non flow that has constant pressure…

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Q: 5 kg of air at 1300 K and 6 bar is expanded isentropically to 2 bar. Find the outlet temperature,…

A: given data  mass = 5 kg T1= 1300K P1= 6 bar P2 = 2 bar find outlet temperature, volume, specific…

Q: a) Starting with AS-dQr/T, clearly explain all steps - evaluating the integral and finding the…

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Q: Consider air in a cylinder volume of 0.2 L at 7 MPa, 1800K. It now expands in a reversible…

A: Volume ratio = 8:1  V1 = . 0002 m3 P1 = 7 × 10 ^3 KPa  T = 1800 K  As volume ratio is 8 : 1 then V2…

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: A 20 kg/s steam enters a turbine at an initial enthalpy of 2456kJ/kg and exits at 1987 kJ/kg. If the…

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Q: QD Air at (20 C) and (1.05 bar) occupies (0.025 m'). The air is heated at constant volume until the…

A: In a thermodynamic process, heat is given to the system, in order to increase its temperature.…

Q: You have an adiabatic steam turbine. The steam enters a 0.1m diameter pipe at 200 m/s and it at…

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Q: Wrap piston cylinder tool first of all consists of 0.3 m^3 of Nitrogen (N) at 120 kPa and two…

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Q: The thermodynamic process the problem represents b. the pressure, temperature, and volume after the…

A: Given V1= 6 liters V1=0.006mt3 P1=100Kpa V2=2 liters=0.002mt3 T1=25C Problem represent Polytropic…

Q: This is entropy generation in irreversible process A volume flow of air at 500K, 2000 kPa passes in…

A: According to the given information, the volume flow of air is 500k by which conclude the enthalpy h…

Q: Air at 1000 C°, 1.0 MPa expands in a polytropic process with n = 1.3 to a pressure of 250 kPa. Find…

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Q: Water enters a pump as saturated liquid 50 kPa at a rate of 3.0 kg/s and exits with a pressure of 10…

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Q: entropy : Air inside a cylinder has increased its pressure from 100 KPa to 200 KPa. Evaluate the…

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Q: 3kg of Co2 expanded in a stationary piston cylinder through a polytropic process from 30 degree…

A: T1= 30+273= 303K, m=3kgP1=250KPa, P2=100KPan=1.45T2T1= 1002501.45-11.45=228.014KTotal Work, W=…

Q: A compressor has R-134a entering at 10°C, 100 kPa and exiting as a saturated vapor. It is given that…

A: Given Data The internal temperature of the refrigerant: T1=10°C=283 K The inlet pressure is: P1=100…

Q: Q6) One kg of air is allowed to expand reversibly in a cylinder behind a piston in an isothermal…

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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: Q2 A mass flow rate (0.22 lbm/s) of steam entering a nozzle at 145 psi, 752°F (h=1403.215 Btu/lbm)…

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Q: Saturated steam has a pressure 2.356 Mpa. What are the temperature, specific internal energy,…

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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: Q5: A cylinder piston contains 1001 air at 110 kPa. The air is then compressed in a reversible…

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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.