On the P-v diagram, sketch the constant-temperature process through the state P = 280 kPa, v = 0.06 m3 /kg as pressure changes from P1 = 400 kPa to P2 = 200 kPa. Place the value of the temperature on the process curve on the P-v diagram.

Q: Two tanks containing water are connected by a line with a closed valve. Tank A is 1 m3 in volume,…

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Q: Q2 A perfect gas is contained in a rigid vessel at 2 bar and 315°C is heated at constant volume to…

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Q: A piston-cylinder assembly contains 0.1 kg of air at 300 kPa pressure and 270C temperature. First at…

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

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Q: Q4) An insulated cylinder fitted with a piston contains R-12 at 25°C with a quality of 90% and a…

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Q: and point out the range

A: The plot of polytropic process on P-V and T-S diagram for endothermic, volume decrease, heating and…

Q: Two boilers one with superheater and another without superheater are delivering equal quanttes of…

A: Given Data: The pressure of boiler, P1=P2=20 bar The pressure of the main, P3=20 bar

Q: An ideal gas is taken through a quasi-static process described by P = av2, with a = 2.00 atm/m°, as…

A: This question is related to the first law of thermodynamic for a closed system. As we know the…

Q: Q3: A. The frictionless piston shown in Figure below has a mass of 20 kg. Heat is added until the…

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Q: A piston-cylinder device contains 0.8 kg of steam at 320° C and I MPa. Steam is cooled at constant…

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Q: An amount of steam undergoes a constant volume process from an initial state for which the pressure…

A: GivenAn amount of steamm undergoes a constant volume processwhereP1=0.1MPaT1=350oCandT2=300oC

Q: Solve the following questions using Steam Table: 1. Determine T, h, s, u and v of saturated steam…

A: Given conditions Condition 1 Pressure = 1.4 MPa With a superheat of 100oC   Condition 2 Pressure =…

Q: Q2 (A) 0.6 kg of air at 15 bar and 300 °C is expanded to three times the original volume according…

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Q: Q2 (a) A polytropic process is defined as PV" = C , where n is polytropic index and C is a constant.…

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Q: (b) Sketch a T-v diagram that includes the saturation line, axes values, the initial and final…

A: Value of state 2 is taken from saturated steam table..

Q: find the changes in h  as appropriate. The initial state pressure is p1 = 0.5 MPa. the final state…

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Q: A tank of compressed air is at 40°C and 10 atm. 1 third of the gas is removed for inflating a car…

A: Dear student,                    According to the guidelines I am allowed to answer only three…

Q: For the situations below briefly explain how you obtained the values and provide the numerical…

A: It is required to determine properties for given process

Q: 1. A rigid tank contains air at 500 kPa and 150°C. As a result of heat transfer to the surroundings,…

A: According to the given dataP1=500KpaP2=400KpaConstant volume process  {}We need to find The boundary…

Q: A polytropic process of air from 150 psia, 300°F, and 1 ft3 occurs to P2 = 20 psia in accordance…

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Q: The figure shows a pV diagram for 1.8 g of helium gas (He) that undergoes the process from the state…

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Q: In a piston subjected to a constant temperature T=125°C, there are 20 grams of water with a quality…

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Q: While the temperature remains constant at 38 degrees C, 2.5 kg of a certain ideal gas whose Cp =…

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Q: Q3: A. The frictionless piston shown in Figure below has a mass of added until the temperature…

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Q: Problem 2 R-134a is expanded isothermally at 20°C from a saturated liquid to a final state with a…

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Q: Two tanks connected with each other as shown. The first one has 2 kg of water at P=200 kPa, V, = 1m,…

A: option C i.e. 0.4264 is the correct answer.

Q: Steam undergoes an isentalpic (h=C) process from 1.5 MPa, 350°C to 10 MPa. Find the final…

A: Given: Initial pressure P1=1.5MPaInitial Temperature T1=350oCFinal pressure P2=10MPa

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: 2. Through an isentropic process, a piston compresses 2 kg of an ideal gas at 150 kPa and 35C in a…

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Q: 1.3 0-05 m³ of a gas at 6-9 bar expand reversibly in a cylinder behind a piston according to the law…

A: Note:As per our guidelines we are supposed to answer only one question. Kindly repost other…

Q: A rigid tank is divided into two compartments by a membrane (as shown in the Figure). Compartment A…

A: To find: The amount of heat transfer during the process. Given: The pressure in room A is PA=325…

Q: Example 2: A system consists of N, in a piston-cylinder assembly, initially at P, = 20 psi, and…

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Q: (a) A certain perfect gas at temperature 15 °C and pressure 250 kN/m², occupying a volume of 0.35 m³…

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Q: A polytropic process of air from 150 psia, 300°F, and = 20 psia in accordance with Py1.3 C.…

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Q: 1.2 1 kg of a fluid is compressed reversibly according to a law pu= 0.25, where p is in bar and v is…

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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.