Which of two gases—neon or air—requires less work when compressed in a closed system from P1 to P2 using a polytropic process with n = 1.5?

Q: A system containing air undergoes a polytropic process (polytropic exponent n= 1.3). During the…

A: Given:Polytropic index, n=1.3P1=100 kPaP2=1000 kPam=0.001 kgT1=10o C

Q: A sample of ideal gas is expanded to twise its original volume of 1.0 m' in a quasi-static process…

A: It is asked to find the work done in expanding the volume from 1 m^3 to 2m^3.

Q: Q2: Air in A frictionless piston-cylinder device is compressed slowly according to the relation…

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Q: A cylinder fitted with a piston contains oxygen has an innitial volume of 0.2 m and pressure 200 kpa…

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

Q: 850 g of a certain substance is heated at constant pressure from 40 ⁰C to 70 ⁰C. Specific heat…

A: For solving this problem, we first solved the quadratic equation and calculated the value of Cp. We…

Q: We have 1 m3 of air (ideal gas), at pressure p1 = 10 atm, it undergoes expansion at constant…

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Q: Rank the following thermodynamic process by the work done by the system. (Highest positive should be…

A: Given 1. Assume v2>v1 and p1>p2>p3

Q: system (calculate quality if appr ure of the system. Show how pol for

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Q: A spring-loaded piston-cylinder device contains of m=1 kg carbon dioxide. Initially, the spring has…

A: P1=500 kPaV1=0.1 m3T1=150 KV2=0.3 m3T2=900 K

Q: 5 lbm of air expands inside a piston cylinder configuration at a constant pressure of 24 psia.…

A: Given data  mass of air (m) = 5 lbm  pressure (P) = 24 psia change in temperature (∆T) = 100oF…

Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: Answer: The required voltage for the electric resistive heater is 22.3611 Volts.

Q: a) A system of piston cylinder contains 5 kg of water at 150 kPa and 25 °C. Cross sectional area of…

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Q: A piston/cylinder assembly with a spring contains 0.075 kg of water. The piston is initially resting…

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Q: 3 kg of wet vapor, having a quality of 33% expands at a constant pressure of 5.6 MPa inside a…

A: Mass of wet vapor, m=3 kg Dryness fraction, x=0.33 Pressure, P=5.6 MPa Quality of steam defines the…

Q: An ideal gas at 27 oC is heated at constant pressure till the volume becomes three times. The…

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Q: A frictionless piston-cylinder device contains 2.5 kg of nitrogen at 100 kPa and 250 K. Nitrogen is…

A: According to the given dataThe mass of nitrogen is m = 2.5 kgThe initial pressure is P1 = 100 kPaThe…

Q: A tank, having a volume of 5 m3, is filled with N2 and 2 kg of CO2 at a pressure and temperature of…

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Q: A ball having 7.62 cm radius contains air (R = 53.3 lbf – ft/lbm - R) at 235.3 psig and 550R. After…

A: Given Data, r= radius of the ball = 7.62 cm = 7.62x0.393701 = 3 inch V = Volume of the ball =…

Q: A rigid container contains m = 3 kg of air. The air changes from an initial state of P1 = 0.5 MPa…

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Q: Superheated steam at 1.0MPa and 300C inside a cylinder of volume 3.0 liters drives a piston in…

A: The ideal gas equation can be used for superheated steam. Here, the superheated steam expands…

Q: A mass of air (molecular mass equal to 28.97 g/mol) at 150 kPa and 27 ‰is contained in a…

A: In the question , it is given that the gas is having a pressure of 150kpa, now first the gas will…

Q: The gage pressure of an ideal gas changes from 100 kPa to 200 kPa while maintaining a constant…

A: GIVEN DATA INTIAL GAUGE PRESSURE = 100KPa INTIAL VOLUME = 100L FINAL GAUGE PRESSURE =200KPa WE HAVE…

Q: Thermodynamic problem. Determine the work necessary to compress a gas from an initial volume VI=90L…

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Q: A metal tank contains air at 20 C and 400 kPa. The tank volume is 5 m³. It is connected through a…

A: given; →tank 1st;→temperature(T1)=200c=293K→pressure(P1)=400KPa→volume(V1)=5m3→for tank 2;→mass of…

Q: A cylinder is filled with 0.05 moles of an ideal gas at a temperature of 10°C. The cylinder has a…

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Q: what pressure, in bar, should the valve be set to have a maximum temperature of 200°C?

A: Given that: V1 = 1 m3. m = 2 kg. T1 = 100 oC. T2 = 200 oC It is required to determine final pressure…

Q: In a piston-cylinder setup, 2 kg of water undergoes a constant temperature expansion at Temperature…

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Q: In what state will water be if the pressure and internal energy are 750 kPa and 1000 kJ/kg,…

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Q: e gage pressure of an ideal gas changes from 100 kPa to 200 kPa while maintaining a constant…

A: Given:P1=100 KPa (gauge)P2=200 KPaV1=100 L=0.1 m3

Q: How much work is done by the gas if the ratio between its specific heat in constant volume and the…

A: Write the given data. Pinitial=6 PaVinitial=0.01 m3Pfinal=2 PaVfinal=0.04 m3cVR=1.5

Q: Consider 6.5 kg of air at T1= -53°C in a frictionless cylinder and piston. By applying heat to the…

A: Given: Mass of air=6.5kg The initial temperature of air T1=-53°C or 273-53=220K

Q: Five pounds of mass of water are contained within a cylinder-piston system. The initial temperature…

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Q: Q2/ Determine the work done by the argon if 400-L cylinder A contain argon gas (ideal gas) at 250…

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Q: A gas is compressed inside a compressor’s cylinder. Whenthe piston is at its bottom dead center, the…

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Q: A rigid tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A: Answer: The final temperature of the gas is 3327℃.

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.