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: Air Initially at 14.7 psia and 80 deg. F is heated in a constant volume non-flow process until the…

A: Given data: P1=14.7 psiaT1=80°CT2=1500°FV3=3V1 Need to determine the heat added at constant volume…

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: 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: the entropy of saturated vapour

A: Given; A closed system contains , m=10 kgLiqquid ammonia at=100 CConstant pressure,o=16.2 MJIf the…

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: Air is expanded from 4 MPa and 1080 K to 100 kPa and 450 K. a) Calculate the air's change in…

A: Given data:- Initial pressure (P1) = 4 MPa = 4000 kPa                       Initial temperature…

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

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Q: EXERCISES ON PROPERTIES OF STEAM 3). Ten kg of water 45 °C is heated at a constant pressure of 10…

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Q: Water at 100 °C with a quality of 15% has its temperature raised 20 °C in a constant volume process.…

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Q: 96 kPa and V, = 7.65 mº/min to p, 620 kPa, find th h 1 e change of entropy and the heat for (a)…

A: P1=96kPa P2=620kPa V1=7.65m3/min

Q: How much work was required (kJ)?

A: take properties from steam table here state 1 is super heated state and 2 is sub cooled state.so…

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

A:

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: 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: Consider the mixing chamber shown in the figure below. In the device, 2.2 kg/s ammonia at 1000 kPa,…

A: (a) To find: The vollume flow rate of the second flow. Given: The pressure at the inlet 1 is P1=1000…

Q: How much entropy is transferred if 200 W of thermal energy are transferred to a heat sink at 300K?

A: Consider the schematic diagram of the thermal reservoir (Heat sink) extracting heat.

Q: a) The exit velocity b) The inlet to exit area ratio c) The inlet exit density ratio

A: Given that: Refrigerant R134a is flowing inside the diffuser. The diffuser is adiabatic, hence net…

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

A:

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: Q1: A cylinder/piston contains 0.1m³ of air at 110 kPa, 25°C. The air is compressed in a reversible…

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Q: Gas is flowing through a square conduit whose section gradually changes from 150 mm (section 1) to…

A: Given:Side of square conduit at section 1, L1=150 mm=0.150 mSide of square conduit at section 2,…

Q: he 1 lb of air has decrease of internal energy of 20.58 Btu while its Fahrenheit temperature is…

A: Given:m=1 lb∆u=-20.58 BTU T2=T13

Q: Steam @ 500 C and 3500 kPa enters a nozzle at a velocity of 30 m/s and leaves as saturated vapor at…

A: Step 1:Inlet conditionsPressure (P1) = 3500kPa = 3.5 barTemperature (T1) = 500°cInlet velocity (V1)…

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: steam at 200 degree Cand with an entropy of 5.6105KJkg-K expand isothermally to 0.515MP.. For 5kg a)…

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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: 1 1 Helium is compressed through a compressor steadily. At the inlet the pressure is P₁ = 100kPa and…

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Q: 1.: Entropy can be related to other substance properties 2. What is the entropy change for an energy…

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

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Q: 1 Helium is compressed through a compressor steadily. At the inlet the pressure is P₁= 100kPa and…

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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.