While the temperature remains constant at 38 degrees C, 2.5 kg of a certain ideal gas whose Cp = 1.1724 kJ/kg-K, Cv = 0.8375 kJ/kg-K rejects 300kJ of heat. If the initial pressure 596kPa, find:

Q: A certain ideal gas whose R = 278.6 J/kg-K and Cp = 1.015 kJ/kg-K expands isentropically from 1517…

A: Given Data: The mass flow rate of gas, m=454 g/s Initial pressure, P1=1517 kPa Final pressure,…

Q: For a certain ideal gas of 1.8 kg-mass with R = 0.272 kJ/kg-K and k= 1.235, calculate the change in…

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Q: For a certain ideal gas cp = 0.99835 kJ/kgK and k = 1.384. What mass (in kg) of this gas would…

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Q: A coal fire boiler plant consumes 400 kg of coal per hour. The boiler evaporates 3200 kg of water at…

A: The answer is in the next step

Q: A gas having Cy = 0.7452 kJ/kg-K, undergoes a process in which AH = 424 kJ/kg and AU = 320 kJ/kg.…

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Q: (Q1) A piston-cylinder device contains 4.2 kg of argon at 950 kPa and 310°C is expanded according to…

A:

Q: Consider a piston-cylinder device that contains argon gas. The gas is initially at 140 kPa, 10 °C,…

A: Given data: *The initial pressure of the argon gas In the cylinder is P1=140 kPa. *The initial…

Q: 2 lbm /min of a certain gas whose R = 767 ft-lb f /lb m -R, undergoes a steady flow isentropic…

A:

Q: 1. An ideal gas with R = 0.062- BTU undergoes a three BTU and Cy =0.158 the-R lb-"R process cycle in…

A: Given data:R = 0.062 BTUl b- °RCv = 0.158 BTUl b- °RThree process cycle1-2  Isothermal…

Q: Steam at 2.6MPa, 400°C expand isothermally until its pressure becomes 4.36MPa. Det dH, dU, dS, dV,…

A: given; pressure(P1)=2.6MPa                         =2.6*103KPatemperature(T1)=4000c…

Q: Nitrogen (N2) at 100C and 600 kPa expands in such a way that it can be approximated by a…

A: Given data: Initial temperature, T1=100°C=373 KInitial Pressure, P1=600 kPaPolytropic constant,…

Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

A: superheated water at  P1 = 1 MPa T1 = 300 °C = 300+273 = 573 K final temperature  T2 = 100°C =…

Q: 025kg/s of Caton Dioxide (R 0.1889 kJ/kg-K, k 1.289) undergo a certain process in a close system…

A:

Q: 4. For a certain ideal gas R = 25.8 ft.lb /lb °R and k =1.09 (a) What are the values of c, and c,?…

A: Given Data The Gas constant is: R=25.8 ft.lb/lb*R The constant is: k=1.09 The equations are…

Q: 0.5 kg of an ideal gas undergoes an isentropic process from 657 kPa gage and a volume of 0.017 cubic…

A:

Q: For a certain ideal gas, R - 0.727 kJ/kg.K and k- 1.483. The gas occupy an inflexible tank with a…

A: Given:R=0.727 KJ/Kg.KK=1.483V1=0.550 m3P1=637.19 KPaT1=41.4°CQe=80.05 KJ

Q: イn To Room temperature T = 293 K V. The gas volume changes from Vp to Va at constant temperature T.…

A: As the temperature is constant during the process , The process is isothermal . Internal energy is…

Q: Two identical piston-cylinder devices are each filled with 1 kg air at T = 300 K and P= 2 bar. Next,…

A: Realization of various processes: Isothermal process: In this process, force should change during…

Q: An ideal gas with R=0.062 BTU/lbm-R and Cv=0.158 BTU/lbm-R undergoes a three-cycle in a closed…

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Q: Steam at 3.5 MPa and with a 75.38C superheat rejects 1973.36 kJ per kg of steam heat at a constant…

A:

Q: The decrease in internal energy of a 1.25-kg ideal gas is 345 kJ when the pressure decreases from…

A: State 1: P1 = 690 kPa, V1 = 0.05 m3 State2: P2 = 138 kPa, V2 = 0.14 m3    mass, m = 1.25 kg decrease…

Q: (Section B) A thermodynamic system contains piston-cylinder arrangement with 0.02 m³ of air at 50°C…

A:

Q: Four pounds of air gain 0.491 Btu/°R of entropy during a nonflow isothermal process. If p1 = 120…

A: Given data: Mass of air = 4 lb                     Entropy change = 0.491 Btu/°R…

Q: 1.5 kg of an ideal gas occupies a volume V at 35 °C. The gas expands adiabatically to a volume 3V.…

A:

Q: A steam boiler initially contains (5 m3) of steam and (5 m3) of water at (10 bar). Steam is taken…

A: Given:P=10 barVs1=5 m3Vw1=5 m3Vw2=4 m3 Given:

Q: An ideal gas is compressed adiabatically to 1/32 of its initial volume. If the initial temperature…

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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: V1 = 1.15

A: given: R = 188.96 J/kg-K  cp = 0.8452 KJ/kg-K m=5kg  v1= 1.15 m3  P1 =700 KPa

Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

A: To solve the question.. We need to use the steam table to know the volume at 1Mpa 300C and then…

Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

A:

Q: If 3 MJ of heat is removed from 1 kg of steam at 200 °C, the result will be?

A: Q = mcp delta T

Q: During a thermodynamics process in an ideal gas with adiabatic exponenty, one third of heat supplied…

A:

Q: and R = 0.518 A certain gas with Cp = 2.215 kg K kg K expand from 0.142 m³ and 300 °K to…

A:

Q: The volume of 6 kg of methane in a piston-cylinder device is initially 11 m. Now methane is…

A: mass of methane = 6 kg initial volume (V1) = 11 m3 final volume (V2)=  5.5 m3 gas constant (R) =…

Q: An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergo a reversible non flow…

A:

Q: One kilogram of water ( ̄V1 = 1003 cm3/kg) in a piston/cylinder device at 25 ‰and 1 bar is com-…

A: To find: The value of Q,W,∆U,∆H and ∆S. Given: Temperature of water is 298.15 K. Formula used: The…

Q: The decrease in internal energy of a 1.25-kg ideal gas is 345 kJ when the pressure decreases from…

A: Process can be determined as So the process is polytropic

Q: (Q5] (a) A 2.5 g of ideal gas at state a has a volume of 0.01 m3 and temperature of 30 C, It…

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Q: The volume of 1.5 kg of hydorgen in a piston-cylinder device is initially 6 m. Now hydrogen is…

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Q: At constant temperature, the volume of a gas is inversely proportional to its pressure. [Whenever…

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Q: Superheated water at 1 MPa and 300 C is allowed to cool at constant volume until the temperature…

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Q: An gas whose pressure, volume and temperature are 275 KN/m3 ,0.09 m³ and 365 °F, respectively, has…

A: Ideal gas equation relates the temperature, volume and pressure of an ideal gas. It is given as…

Q: A piston-cylinder device contains Helium gas initially at 200 KPa, 20°C, and 0.8 m3 Tho hilum io nou

A: Given Data Now the mass of the gas is calculated as

Q: 4. A 1.00 mole sample of a monatomic ideal gas, originally at a pressure of 1.00 atm, undergoes a…

A:

Q: Three moles of an ideal gas at 100 kPa pressure and 20oC are heated reversibly at constant pressure…

A: Number of moles n=3 Pressure P=100 kpa Initial temperature T1=20°C=293 k Final temperature…

Q: At a certain process, the specific heat at polytropic process of air is 0.3075kJ/kg- k. Under the…

A: Given:Cpoly=0.3075 KJ/Kg.KInitial condition at STPP2=200 KPa

Q: A cylinder that contains 0.066 kg of carbon dioxide (with molar mass 44 kg/kmol), occupying a volume…

A:

Q: A piston-cylinder device contains air initially at 350 kPa, 650 K and 0.4 m3 undergoes a…

A: Given Data Pressure at 1 is: P1=350 kPa Temperature at 1 is: T1=650 K Volume at 1 is: V1=0.4 m3…

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.