Isochoric: A reversible non-flow, constant volume process decreases the internal energy by 316.5 KJ for 2.268 kg of a gas for which R= 430 J/(kg –k) and k= 1.35. For the process, determine a. the work b. Q and c. ∆S The initial temperature is 204.4 0 C

Q: H t . 7. An ideal gas , Cp=(5/2)R and Cv=(3/2)R, is changed from (P1=1 bar and V1 t =  10m3 ) to…

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Q: While the pressure remains constant at 689.5 kPa, the volume of a system of air changes from 0.567m³…

A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked .…

Q: During a reversible process there are abstracted 320KJ/s of heat from 1.23kg/s of a certain gas,…

A: Heat, Q= -320 kJ/s Mass flow rate, m= 1.23 kg/s Cp= 2.232 kJ/kgK Cv= 1.713 kJ/kgK Temperature, T1=…

Q: Air at 1bar, 290K enters a compressor operating at steady state and is compressed adiabatically to…

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Q: Water within a piston-cylinder assembly, initially at 10 Ibf/in.?, 550°F, undergoes an internally…

A: Answer: W12m=-232.396 BTU/lbQ12m=-140.286 BTU/lb

Q: A rigid tank containing air is subjected to a reversible process in which it is heated from its…

A: Answer: The specific change in entropy is 0.760324 kJ/kg•K.

Q: Steam at a massflow rate of 10 kg/s at 5 MPa and 600 °C enters an insulated turbine operating at…

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Q: An irreversible process   a) lacks a preferential direction of occurrence b) occurs spontaneously…

A: Option b is correct.

Q: 2. A certain gas, with Cp = 0.529 Btu//6°R and R = 96.2 ft-lb/I6°R, expands from 5 ft and 80°F to 15…

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Q: During a reversible process, 2.84 kg/s of gas rejects 302.8 kJ/s of heat isothermally at 24.2°C. For…

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Q: Q2/ An ideal gas, Cp= (2) R and Cv=R, undergoes the following mechanically reversible changes in…

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Q: During a reversible process, 1.44 kg/s of gas rejects 316.3 kJ/s of heat isothermally at 24.2°C. For…

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Q: 1 An isentrop (a) Irreversible and adiabatic (b) Reversible and isothermal (c) Frictionless and…

A: 1. An Isentropic process is always  Answer : c ) Frictionless and Adiabatic Explanation : In the…

Q: QI (a) Using a sketch as you think appropriate, describe a pure substance in themodynamics system…

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Q: A fluid at pressure of 3 bar, and with specific volume 0.18m^ 3 /kg , contained in a cyclinder…

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Q: Air enters a nozzle operating at steady-state at 800°R, with a negligible velocity, and exits with a…

A: Given : Temperature at inlet (T1) = 8000 R Velocity at Exit (V2) = 1500 ft/s Heat Transfer (Q/m) = -…

Q: During a reversible process, 2.92 kg/s of gas rejects 333.4 kJ/s of heat isothermally at 25.9°C. For…

A: Given data:

Q: PROBLEM 4. Oxygen at the rate of 1.36 kg undergoes a reversible isobaric process min during which…

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Q: I kg of air initially at 1 bar and 20°C is work as the cycle shown. If the work net of this cyele is…

A: given data: m=1kgspecific heat ratio of airγ=1.4temperature(T1)=20+273=283Kpressure(P1)=1bar=100kpa…

Q: R-134a enters a well-insulated diffuser as a saturated vapor at P, = 100 lbf/in2 with a velocity of…

A: Given: The pressure at the inlet of diffuser, P1 = 100 lbf/in^2 The velocity at the inlet of…

Q: 4. In part of a Carnot cycle, water undergoes two internally reversible processes shown in the…

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Q: Refrigerant 134a enters a well-insulated nozzle at 200 Ibt/in, 170, with a velocity of 120 fts and…

A: Heat Pumps: The devices that transfer heat from cold bodies to hot bodies are called heat pumps.…

Q: During a reversible process, 2.85 kg/s of gas rejects 322 kJ/s of heat isothermally at 25°C. For…

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Q: A non-flow reversible process occurs for which pressure and volume are correlated by the expression…

A: Given:P=(V2+6V)V1=3 m3V2=5 m3

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

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Q: 2. During an isothermal process at 88°F, the pressure on 8 Ibm of air drops from 80 psia to 5 psig.…

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Q: What is the rate of work per unit mass flow rate (in kJ/kg) for an isothermal (n=1) and internally…

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Q: In a turbine air expands from 5 bar, 520°C to 1 bar, 300°C. During expansion 10 kJ/kg of heat is…

A: Given-Data:- P1=5barP2=1barPo=0.98barT1=520°CT2=300°CTo=20°Ccp=1.005jJ/kgKh=cp To-Find:- 1) The…

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: 3. During a reversible process there are abstracted 320KJ/s of heat from 1.23kg/s of a certain gas,…

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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: Water within a piston-cylinder assembly, initially at 10 lbf/in.?, 750°F, undergoes an internally…

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Q: 1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv…

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Q: PROBLEM 1. Oxygen at the rate of 1.36 kg undergoes a reversible isobaric process min during which…

A:

Q: Q6/ Steam enters a turbine operating at steady state with a mass flow rate of 4600 kg/h. The turbine…

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Q: 1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv…

A: Given data mass flow rate = m˙ = 50 kg/sPressure at entry = Pi = 500 kPaTemperature at entry = Ti =…

Q: 2. Gaseous nitrogen actuates a Carnot power cycle in which the respective volumes at the four…

A: Draw the given cycles on a T-S plot.

Q: Carbon dioxide gas is compressed at steady state from a pressure of 16 lb;/in? and a temperature of…

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Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

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Q: 18. While pressure remains constant at 689.5 kPa the volume of a system of air changes from 0.567 to…

A: As per our guidelines we are supposed to answer first three sub-parts. The given values are -…

Q: 3. Air occupies a 0.3 m³ piston-cylinder at 150 kPa and 278 K. The piston-cylinder operates on a…

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Q: Water within a piston-cylinder assembly, initially at 10 lbf/in.?, 850°F, undergoes an internally…

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Q: Example 3.5 If the processes of Ex. 3.4 are carried out irreversibly but so as to accomplish exactly…

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Q: An ideal gas undergoes a reversible clockwise cycle shown in Fig 1c.i (from state P1, V1 back state…

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Q: Carbon dioxide gas is compressed at steady state from a pressure of 22 lby/in? and a temperature of…

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Q: A rigid, insulated vessel is divided into two compartments connected by a valve. Initially, one…

A: Given data: V1=1 ft3P1=50 lbf/in2T1=650°RV2=2 ft2 Need to determine the final temperature of the air…

Q: Water within a piston-cylinder assembly, initially at 10 lbf/in.?, 850°F, undergoes an internally…

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Q: 13. During a reversible process, 2.09 kg/s of gas rejects 322.9 kJ/s of heat isothermally at 25.5°C.…

A: Given: The mass, m = 2.09 kg/s The heat rejects, Qr = 322.9 kJ/s The temperature, T = 25.5 C The…

Q: During a reversible process, 2.07 kg/s of gas rejects 336.8 kJ/s of heat isothermally at 24.9°C. For…

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Q: A turbine operating under steady-flow condition receives steam at the following state:…

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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.