A gas at a pressure of 1.4MN/m2 and temperature of 360 degrees is expanded adiabatically to a pressure of  100KN/m2 the gas is then heated at constant volume until it again attains 360 degree Celsius when its pressure is found to be 220KN/m2 and finally it is compressed isothermally until the original pressure of 1.4MN/m2  is attained sketch the p-v diagram for these process and if the gas has a mass of 0.23kg, determine;       The valve of the adiabatic index y The change in internal energy during the adiabatic expansion  Taking Cp for the gas as 1.005KJ/kgk

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

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Q: A monatomic ideal gas initially fills a V0 = 0.45 m3 container at P0 = 85 kPa. The gas undergoes an…

A: Given, Initial volume, V1=0.45 m3 Final volume, V2=1.4 m3 Initial pressure, P1=85 kPa=85000 Pa

Q: In a spring-loaded piston-cylinder arrangement shown in Figure P4-57 0.03 m3 of air is contained in…

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Q: Initially, a rigid tank contains 500L of water at 300°C. By volume, the tank contains60% liquid and…

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Q: P(KPA) Consider the following cyclic process. Heat is al- lowed to flow out of a 0.7 mol of ideal…

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Q: .36 cubic meter of a perfect gas at 1.8 bar and 17.9°C is compressed to a volume of 0.70 m³ and a…

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Q: 4-36E A piston-cylinder device contains 0.5 lbm of water initially at 120 psia and 2 ft³. Now 200…

A: Givenm=0.5 lbmP1=120psiaV1=2ft3Q=200Btu

Q: The temperature before and after the adiabatic process is 200 K and 127°C. The pressure before the…

A: Given data:

Q: A brick wall, 225 mm thick and having a thermal conductivity of 0.60 WI(m K), measures 10 m long by…

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Q: Consider a polytropic process with argon, where n=1.67. The final temperature is 375 Kand the final…

A: Given data,       process is  polytropic   n=1.67.       Final  temperature=375 K.       Final…

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: A rigid tank initially contains 4 kg of saturated liquid R-134a at 24C. A valve in the bottom of the…

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Q: 0.5 kg of superheated steam (2bar and 200°C is compressed isothermally until it becomes saturated…

A: Mass of steam = 0.5 kg Superheated state = 2 bar, 200°C

Q: In the piston-cylinder assembly in the figure, the first 1 kg at a temperature of 110°C and a…

A: Mass = 1 kg  Initial pressure = 600 kpa Initial temperature = 110 C

Q: 1m of saturated liquid water at 200°C is expanded until its quality is 80 percent and the pressure…

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Q: Figure demonstrates a rigid, insulated tank that is divided into two parts by an interior partition.…

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Q: A piston-cylinder device contains water of quality x=0.7 and pressure 200 kPa with an initial volume…

A: Given:Inital pressure of water in the cylinder, P1=200 kPaInitial quality of water in the cylinder,…

Q: 20-2 An ideal gas undergoes the thermodynamic process shown in the PV 2P,: diagram in the figure.…

A: Initial and final temperatures can be determined by using ideal gas equation As temperature is…

Q: in a turbine gas expands such that the process is isentropic and the gas pressure decreases from…

A: GivenP1=900kPaP2=200kPaT1=375oC=375+273=648Kγ=1.4γ=1.3

Q: 4-36E A piston-cylinder device contains 0.5 lbm of water initially at 120 psia and 2 ft³. Now 200…

A: Given data: V=2 ft3m=0.5 lbmP1=120 psiaQ=200 Btu

Q: The temperature of 1.9 kg of water is 100.0°C, but the water is not boiling, because the external…

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Q: Steam is contained in a 2-L volume at a pressure of 2.0 MPa and a temperature of 400°C. If the…

A: Givenvolume of the steam v=2ltr=2×10-3 m3pressure, P=2MPatemperature T=400oCheat added Q=20kJ

Q: Hi can you please help with this thermodynamics question? Please be very clear with the formulas…

A: Wp = -301.5 kJ/kg.k change in entropy = 0.7 kJ/kg.kExplanation:Approach to solving the question:…

Q: A 10-g ice cube at -10°C is dropped into 40 g of water at 30°C. After enough time has passed to…

A: Given data The mass of the ice is mi=10 g= 0.01 kg. The initial temperature of the ice is…

Q: Water is contained in a cylinder/piston arrangement fitted with upper stops which limit the volume…

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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: A 166 g block of ice is cooled to -78°C and is then added to 500 g of water in an 80 g copper…

A: Write the values of specific heats of water, ice, and copper and the latent heat of fusion of ice…

Q: Interpolation and explanation required.

A: Step 1:Step 2:Step 3:Step 4:

Q: Initially, a rigid tank contains 50OL of water at 300°C. By volume, the tank contains60% liquid and…

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Q: re, an insulated rigid tank is divided into two equal parts by a partition. Initially, one part…

A: Given data as per question' Mass of gas, m=4 kgFor state 1P1=600 kPaT1=300KR=0.2870 kJ/kg K

Q: Determine the temperature

A: At 200 degree u=2642.9KJ/Kg   h=2855.4 KJ/Kg At T                 u=?                      h=2893…

Q: If in air at 60°C a body cools from 90°C to 80°C in 10 minutes, find the temperature 20 minutes…

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Q: 3-39 Water initially at 200 kPa and 300°C is contained in a piston-cylinder device fitted with…

A: The given information in the problem is represented in the following attached image:

Q: A container of a gas is at 25°C and 270kPa. If it can withstand a pressure of 1000 kPa, at what…

A: Given data: Initial temperature of the container, T1=25oC The initial pressure of the container,…

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.