Define the system to be a container full of steam. If the steam condenses, did the system hae a positive or negative entropy change?

Q: - The entropy (in kl/kg/K) of the mixture is

A: Given: A tank of volume,v=0.05 m3It contains a mixture of saturated water and saturated steam at,…

Q: kg of water at 10 x last digit kPa (if last digit is 2 then 10 x 2 = 20 kPa).  Determine specific…

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Q: (a) Determine the work spent on the system if the compression is reversible as well as the exit…

A: GIVEN :- P1=200 KPaT1=250°CP2=3.5 MPa   SOLUTION :- taking the super heated steam properties from…

Q: 1 kg of air is allowed to axpand reversibly in a Cylinder Sehind a piston in such away that the temp…

A: Thermodynamics : It is a branch of science which deals with work, heat, and energy.  Also it studies…

Q: HOwrate of 0.75 Ibm/s of water at 80 F and 70 pisa is mixed with 1 Ibm/s of saturated vapor water at…

A: To determine the quality of steam leaving the chamber, first, we need to calculate the enthalpy of…

Q: Air at 15°C and 100 kPa occupies 0.03 m³. The air is heated at constant volume until the pressure is…

A: To find :The change in net specific entropy

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: What is the amount of change in entropy if the process is Isothermal (in kJ/K)?

A: for solution refer below images.

Q: Shown in the figure, an insulated rigid tank is divided into two equal parts by a partition.…

A: Giveninsulated tankm=4kgP1=600kPaT1=300KR=0.287 kJ/kgKCv=0.7180 kJ/kgK∆U=mCvT2-T1

Q: Refrigerant R-134a to the compressor of a refrigeration machine It enters at 140 kPa pressure and…

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Q: A piston-cylinder device contains Nitrogen gas "with constant specific heats at room temperature" 3…

A: System is a definite area under our consideration. The state of the system is defined as property…

Q: A vessel contains 15 kg of water at 80 ºC. Determine specific and total internal energy, specific…

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Q: Refrigerant-134a enters an adiabatic compressor at -26°C as a saturated vapor at a rate of 0.45…

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Q: mass flowrate Ibmis of water at 80 F and 70 pisa is mixed with 1 Ibm/s of saturated vapor water at…

A: The quality of stream at exit is 0.662. Therefore, option (c) is correct answer.

Q: Q1: Air enters a diffuser at 200 m/s with a pressure of 85 kPa and a temperature of -20°C. It leaves…

A: INTRODUCTION: The diffuser is a steady flow mechanism in which incoming mass leaves by expanding and…

Q: A 0.2 m3 vessel contains 120 kg of water at 90 ⁰C. Determine pressure, specific and total internal…

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Q: explain in a structured way about the relationship between gibs free energy, enthalpy and entropy at…

A: Let's explore the relationship between these three thermodynamic quantities in a structured…

Q: where volume V is in m³. Find the final volume.

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Q: 5L rigid container contains Acetylene initially at gage pressure and temperature of 100 KPa and 300…

A: given; ⇒volume of container (V)=5L=5*10-3m3⇒initially;⇒P1=100KPa⇒temperature (T1)=300K⇒lets take…

Q: Consider a device with one inlet and one outlet. If the volume flow rates at the alet and at the…

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Q: Air at 15°C and 100 kPa occupies 0.03 m³. The air is heated at constant volume until the pressure is…

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Q: from Equation bandeaquation a Press Plove that P2 T2 P. fetch while for non-isentropic process,…

A: To be derived equation for (a) isentropic process and (b) non isentropic process

Q: R-134a at temperature = -10°C has a mass = 21 kg and a volume = 880L. The quality of the refrigerant…

A: Given:Temperature of R134a, T=-10°CMass of the refrigerant, m=21 kgVolume of the refrigerant, V=880L…

Q: A piston-cylinder assembly contains 5 kg of saturated water vapor at a pressure of 3 MPa. At the end…

A: Data given-  m = 5kg  Pressure of saturated water vapor Pv= 3Mpa  Pressure of saturated liquid  Pl =…

Q: Water vapor at the throttling valve inlet in a piping circuit at 4MPa pressure at 300 °C is at the…

A: Given Data State 1: 4 MPa, 300°C Throttling process

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

A: Dear student,                    According to the guidelines I am allowed to answer only three…

Q: A gas flows steadily through a rotary compressor at a temperature of 16 ⁰C, a pressure of 100 kPa,…

A: (a) The external work done per unit mass of gas can be calculated as follows: External work done per…

Q: 2.6 kg of Steam at 500 kPa and 4000C was cooled in a piston cylinder device until 56% condenses..…

A: mass of steam m=2.6kgpressure P=500kPatemperature T=400oCcooled in piston until 56% condenses

Q: Refrigerant R-134a to the compressor of a refrigeration machine It enters at 140 kPa pressure and…

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Q: We take a 33 kg chunk of ice (Temp is 0°C) and submerge it in an isolated container. This container…

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Q: Three test tubes containing water. The first test tube containing 10 gm water at 25 °C, second test…

A: Heat transfer: the transfer of heat from one body to another body due to the temperature differences…

Q: The free expansion of an ideal gas is an adiabatic process andso no heat is transferred. No work is…

A: Given: Free expansion process To determine: Why equation Q/T cant be apply for this process

Q: A A body of constant heat capacity c, and initial temperature T is placed in contact with a heat…

A: Entropy change is positive when the heat is added to the system and it is negative when heat is…

Q: The entropy of the system can be determined by integration from

A: Entropy is the ratio of heat transfer divided by the absolute temperature

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.