Find the desired thermodynamic properties in the cases given below. Draw the P-V diagram for options (A) and (B) of SU, and the T-V diagram for options (c) and (d). (a) find v and U If P = 500 kPa and T = 250°C (b) find T and U if P = 500 kPa and V =0.2 m3/kg. (c) find v and H if T = 500 °C and P = 2 MPa. (d) find P and U if T = 200°C and v = 0.01 m3/kg.

Q: Air is expanded in an internally reversible process from p1=10.29 bar and T1=1200K to a final…

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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…

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Q: 6. A closed rigid container with a volume of 0.5 m^3 has hydrogen at an initial pressure of 100 kPa…

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Q: 2-kg saturated liquid Refrigerant-134a at 0. 40 MPa undergoes the following: Process 1-2:…

A: Given data: - The mass of saturated liquid Refrigerant-134a is m = 2 kg. The pressure of saturated…

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

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Q: If 4 lb of NH3 at 200 psia and 360°F are cooled at constant volume to t2 =100°F, find (a) p2, (b)…

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Q: A piston-cylinder device contains water that is initially at 200 kPa and 300°C. The piston-cylinder…

A: Introduction During the…

Q: Robert Matthew Van Winkle takes 1 kg of ice and dumps it into 1 kg of water and, when equilibrium is…

A: mass of ice, mi=1 kgmass of water.mw=1 kgFinal mass, m=2 kgInitial temperature of water, Tw=0o C

Q: A 10-kg steel container (cp = cv = 0.46 kJ/(kg K)) is cured at 500 °C. After coming out of the oven,…

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Q: Air, 5.37 kg, is compressed in a piston‑cylinder device from 91.3 kPa and 65.3 ∘C to 195.2 kPa in an…

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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: (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: ketch a PV diagram and find the work done by the gas during the following stages. (a) A gas is…

A: According to the given data  (a) V1=1L=10-3m    { 1L=10-3m} V2=4L=4x10-3m P1=P2=8atm=810600N/m2  {…

Q: 1.56 moles of an ideal gas is placed in a piston and is subjected to the following changes. (a) The…

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Q: 2) As shown, a piston-cylinder assembly contains 5 g of air holding the piston against the stops.…

A: The data given is, Mass of the air, ma = 5 g = 0.005 kg Initial temperature, T1 = 600 K Initial…

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

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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: 4. A rigid tank initially contains 5kg of saturated vapor steam at 150°C. Heat transfer is done…

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Q: Consider 0.5 kg of Refrigerant -134a contained in a piston-cylinder assembly with initial…

A: Given data:initial temperature =80°cpressure=7baradiabatic expansion=48°cpressure=2barso, from the…

Q: A piston cylinder assembly containing 1.3 kg n-Hexane gas at 146 kPa with an initial volume of 5.74…

A: Given:m=1.3 KgP1=146 KPaV1=5.74 m3

Q: An ideal gas is adiabatically expanded along path AB from a temperature T=500 K to 300 K, and then…

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Q: a. What is the mass of the gas in kg b. What is the mass of the piston in kg c. Calculate the volume…

A: PV=mRT m =PV/(RT) = (200 *1000*0.5)/(488.21* 408) = 0.502034 kg

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Q: 4.8 Saturated steam at 2 MPa is contained in a piston= cylinder arrangement as shown in the sketch.…

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Q: A vessel contains 10N kg of water at 80 ºC. Determine specific and total internal energy, specific…

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Q: Given: Propane, T 18.8°C, h = 175 kJ/kg Find: u (kJ/kg) Your Answer:

A: Calculated internal energy u(kJ/kg).

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A: Given:Intial state 1: P1=500 kPa, T1=150 K, V1=0.1 m3Final state 2:T2=900 K, V2=0.3 m3Find:The…

Q: 3. A 0.5 m³ rigid container has saturated vapor of R134 at 48 °C. It was heated to 60 °C. Calculate…

A: The saturated properties of vapour at 48 degrees Celsius are as shown below.

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: A cylinder and piston assembly contains water at 105°C and 85% quality, with a volume of 1 liter.…

A: Given Datak=100N/mmT1=105°Cx1=85%V1=1L=0.001m3V2=1.5L=0.0015 m3d=150mmT3=600°Cx3=25%

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: For water as a pure substance and using steam tables, determine the: P and u if t = 235 and h =…

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Q: A balloon containing an ideal gas is initially kept in an evacuated and insulated room. The balloon…

A: Given:The balloon ruptures and fills the entire rooms,This is the example of free expansion of gas.

Q: i) the final temperature of the refrigerant, °C, ii) the heat transfer to the refrigerant, kJ.

A: Given that: Cylinder volume =0.02 m3,  Refrigerant R-134a  Density of refrigerant = 85 kg/m3…

Q: Krypton in a closed system is compressed adiabatically from 74 K and 1 bar to a final pressure of 24…

A: Given data  For polytropic process  T1=74K and P1=1bar And P2=24bar  Find the final temperature for…

Q: A 2.80-mol sample of helium gas initially at 300 K, and 0.400 atm is compressed isothermally to 1.40…

A: According to the given data R=8.314J/mol.k T=300k n=2.80mol P1=0.40atn=0.40c105pa…

Q: The pressure change during a particular reversible process is given by T = AP2 where A is a…

A: Given Information:The realtion between Temperature and Pressure T = AP2Given gas is "monoatomic" and…

Q: An ideal gas with a molecular weight of 7.1 kg/kgmol is compressed from 600kpa and 280K to a final…

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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.