1. Why is the following situation impossible? An apparatus is designed so that steam initially at T =1500C, P= 1.00 atm, and V = 0.500 m3 in a piston–cylinder apparatus undergoes a process in which (1) the volume remains constant and the pressure drops to 0.870 atm, followed by (2) an expansion in which the pressure remains constant and the volume increases to 1.00 m3 , followed by (3) a return to the initial conditions. It is important that the pressure of the gas never fall below 0.850 atm so that the piston will support a delicate and very expensive part of the apparatus. Without such support, the delicate apparatus can be severely damaged and rendered useless. When the design is turned into a working prototype, it operates perfectly.

Q: grams of steam has an initial enthalpy of 7100.546 kJ at 0.14546 Mpa. Isentropically compression…

A: Given:- The enthalpy of steam is, H=7100.546 kJ The initial pressure of the steam is, p1=0.14546…

Q: 21. The state of an ideal gas with Cp (5/2)R is changed from P1 bar and V 12 m to P- 12 bar and…

A: Given that

Q: 6) A mole of monatomic gas initially at 0.83 atm and in thermal contact with the surroundings at 294…

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Q: (iv) Show that the Kelvin-Planck and the Clausius expressions of the second law are equivalent.

A: To Show:-  Kelvin-Planck and Clausius expressions of the second law are equivalent.

Q: 3. Please consider a well-insulated compressor that was taking in an ideal diatomic gas at 1 atm and…

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Q: (2) A well-insulated 106 m³ room initially at 3°C and 88 kPa is heated by the radiator of a steam…

A: Given that, Volume of isulated room, v=106 m3Initial temperature, T1=3 °C,Initial Pressure, P1=88…

Q: Question #1) M1 kg of water, initially a saturated liquid at 217 ⁰C, is heated in a closed, rigid…

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Q: ecify whether the steam is -wet -dry saturated -superheated for the following conditions. Prove your…

A: To determine the state of steam at given conditions.

Q: A substance whose Joule-Thomson coefficient is positive is throttled to a lower pressure. During…

A: When a gas(steady flow) passes through an orifice it experiences a change in its temperature due to…

Q: Steam at 2000 kPa and 250 C is expanded isentropically to 343.0 kPa and it is then further expanded…

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

A: The molecules in an ideal gas doesn't interact with each and they continuously undergo collisions…

Q: Ammonia in a piston-cylinder device initially at 7bar,30°C undergoes a reversible isothermal…

A: The initial pressure of ammonia is P1=7 bar. The initial temperature of ammonia is T1=30°C=30+273…

Q: A helium gas is compressed in an adiabatic compressor from an initial state of 14.7 psia and 60 F to…

A: Given- P1=14.7 psia=101.353 kPa, T1=60°F=288.71 KT2=350°F=449.82 K Assuming helium to be an ideal…

Q: Determine on the figure (T-v) what phase the water is in the boiler under the given conditions?…

A: Water in general can exits different phases as subcooled liquid, saturated liquid, saturated wet…

Q: Q3/ One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 120°C and 15 bar by three…

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Q: Part A-Classical Type of Questions QI) In an ice-making plant, water at 0 °C is frozen at…

A: By applying the rating form of entropy balance of the system we can find out the rate of entropy…

Q: There are 3 kg/min of steam undergoing an isothermal process from 30 bar and 350 oC to 7 bar. (note…

A:

Q: A mechanical-draft cooling tower receives 115 m3 /sec of atmospheric air at 101.325 kPa, 32oC DB…

A: Let  V=Volumetric flow of air =115m3/s P =1013.25kPs R =Gas constant of air =287J/kgK T1 =DBT of air…

Q: A sample of 2.00 mol of helium is expanded at constant temperature of 273.15 K from 5.0 L to 20.0 L…

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Q: Part D only Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature…

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Q: steam with an enthalpy of 3015.2 kj/kg undergoes a constant pressure process at 1MPa until the…

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Q: → What is the Zeroth law of thermodynamic? Example 1 10 kg of gaseous CO, contained in a closed…

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Q: One cubic meter of oxygen at initial pressure of 1 bar and a temperature of 17°C are compressed…

A: Given:V1=1 m3P1=1 bar =100 KPaT1=17°C =290 KV2=0.5 m3Cp=0.919 KJ/Kg.KCv=0.659 KJ/Kg.K

Q: A rigid tank contains 6 kg of an ideal gas at 3 atm and 40°C. Now a valve is opened, and half of…

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Q: PART B only Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature…

A:

Q: A rigid tank contains 2 kg of an ideal gas at 4 atm and 40°C. Now a valve is opened, and half of…

A: Given data: Mass of ideal gas (m1)       =2 kg, Initial Pressure (P1)            = 4 atm.…

Q: 4.6 1 kg of steam undergoes a reversible isothermal process from 20 bar and 250°C to a pressure of…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: during reversible process, 2.09 kg/s of gas rejects 322.9 kJ/s of heat isothermally at 25.5 degrees…

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Q: For a reversible process in a closed system, dq is equal to TdS. True False

A: Reversible process: A process in which the system can be returned to the original state from the…

Q: Two insulated cylinders A and B with volumes V- 2.4 m' and Va-5.4 m contain chlorine gas at…

A: final pressure total volume  V = VA + VB = 2.4 + 5.4 = 7.8 m3 total mass m = mA + mB according to…

Q: 3. A gas initially at 15 psia and 2 ft3 undergoes a process to 80 psia and 0.5 ft3, during which the…

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Q: The pressure and temperature of air change from (6.5000x10^0) bar to (2.000x10^0) bar and from…

A:

Q: Part A-Classical Type of Questions Q1) In an ice-making plant, water at 0 °C is frozen at…

A:

Q: PART C only Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature…

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Q: Steam at 300°C and 5 MPa is expanded in a reversible adiabatic process (isentropic) to 0.01 MPa,…

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Q: A 50 L compressed air vessel, initially open to ambient, is charged to 900kPa when the temperature…

A: Given: The volume of the air vessel, V = 50 L The pressure inside the vessel, P = 900 kPa The…

Q: b. Prove the following two themodynamic property relationships ). Where: T. P. V are temperature,…

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Q: Example 1 10 kg of gaseous CO2 contained in a closed system undergoes a reversible at a constant…

A: Given: Mass of the gas=10kg Change in internal energy (dU)=-42kJ Cp=840J/kg.K or 0.84kJ/kg.K…

Q: 10- 1 kg of Nitrogen at 150 °C and 5 bar, undergoes the following sequences of reversible processes…

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Q: 16. A piston-cylinder device with a set of stops initially contains 0.3 kg of steam at 1.0 MPa and…

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Q: A gas whose composition is not known has 42.2k) of paddle work input at constant volume of 566L.…

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Q: Q2: One mole of an ideal gas, initially at 40 C and 1 bar, is changed to 140°C and 12 bar by three…

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Q: A fluid undergoes a reversible adiabatic compression process from 8 bar, 0.3 m3 to 0.08m3 according…

A:

Q: Specify whether the steam is -wet -dry saturated -superheated for the following conditio Prove your…

A: To determine the state of steam for given conditions.

Q: Using a sketch as you think appropriate, describe a pure substance in thermodynamics system with…

A: Given Pure Substance To find Pure substance for reversible phase transition

Q: c) Which process requires more energy: completely vaporizing 100 kg of saturated liquid water at 1…

A: As asked by the student, solving the c and d part of the question. Given Data: c) Mass of the…

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.