2 kg of air at 298 K and 120 kPa inside a piston cylinder device is heated to 860 K in an isochoric process and then, it is heated to 1200 K in an isobaric manner. Determine the overall heat transfer during the process?       1636 kJ       1436 kJ       1200 kJ

Q: An iron block cools down from 200°C to the room temperature of 27°C, when outdoor is 5°C, heating…

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Q: Compute the heat rejected in KJ from a cylinder containing Steam at 2 MPa and 250°C if it is rigid…

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Q: Figure 1 shows a piston-cylinder device. Initially it is filled with the volume of 0.334713 m³…

A: Initial specific volume at the temperature of 100oC. v1=n1×vg=0.4×1.672=0.6688 m3/kg Final specific…

Q: Determine the change in internal energy for a 6cm cube of iron with a mass of 1.7kg as it is heated…

A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: QUESTION 1 Problem 2 Air is contained within a free piston-cylinder device. Initially, the…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Saturated vapor at 55°C is put under pressure to decrease the volume by one percent during an…

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Q: A well-insulated copper tank with a mass of 13 kg contains 4 kg of liquid water. Initially,…

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Q: An isolated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of…

A: Given: Work done, W = 400 kJ        Pressure, P = 170 kPa         Volume, V = 5 L          Current,I…

Q: (4) A mass of 3 kg of R-134a fill a piston-cylinder device with and initial volume of 0.279 m³ at a…

A: Refrigerant R-134a, also known as 1,1,1,2-tetrafluoroethane, R-134a, Freon 134a, Forane 134a,…

Q: A 0.5m³ rigid tank containing hydrogen at 20°C and 600 kPa is connected by a valve to another 0.5m³…

A: given : VA = 0.5 m3 TA = 20⁰C = 293 K PA = 600 kPa   VB = 0.5 m3 TB = 30 ⁰C = 303 K PB = 150 kPa…

Q: A tank contains 20 kg of saturated liquid water at 75°C. What is the total internal energy of the…

A: Given that: The tank contains 20 kg of water. Water is at saturated liquid condition at 75°C. It is…

Q: 5 mol of an ideal gas undergoes an isobaric expansion by adding 1,200 J of heat. Determine the…

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Q: What is the required heat for a pure substance whose saturated temperature is 105°C and its initial…

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Q: For the following adiabatic system of "ideal gases", determine: (a) the final temperature; (b) the…

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Q: Two Insulated cylinders A and B with volumes VA 1.2 m³ and VB 6.4 m³ contain chlorine gas at…

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Q: A piston cylinder device contains 0.850 kg of refrigerant-134a at -10.0°C. The piston that is e and…

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Q: An insulated container is partly filled with oil. The lid of the container is removed, 0.107 kg of…

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Q: A 40-g block of ice is cooled to −74°C and is then added to 600 g of water in an 80-g copper…

A: Given Data⇒mass of icemice=40 gm=0.040 kgMass of coppermc=80 gm=0.080 kgmass of copper=0.080 kgmass…

Q: 2-kg of air (ideal gas) undergoes a compression process from 120 kPa to 600 kPa at a constant…

A: Given Data: Mass of the air, m=2 kg Temperature, T=300 K

Q: A mass of ice at -7 C is needed to cool 224 kg of vegetables (Cp = 3.35 KJ /kg.K )in  a bunker for…

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Q: In a rigid container, there is 3 kg of saturated liquid vapor mixed water. The temperature in the…

A: Given Data⇒ Mass of saturated liquid  (m1)=3 kg Final mass after escape(m2)=(3-1.2)kg m2=1.8 kg…

Q: A 1-kg block of iron is heated from 25 to 75°C. What is the change in the iron’s total internal…

A: Solution:m = 1 kgT1 = 25°c , T2 = 75°C for iron →0.45 KJKg-k( standard value)

Q: A quantity of ideal gas occupies 0.5 m3 at 5oC and 165 kPa. It is compressed in accordance with the…

A: To find : The heat transfer during the process. Given data : The Initial volume is V1=0.5 m3. The…

Q: In this example, water is contained in a rigid container with a tight fitting lid. With a pressure…

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Q: While the piston is pinned, a cylinder with a volume of 0.05 m3 contains 200 kPa pressure and 300 K…

A: Given: Initial temperature (T1)=300KInitial pressure (P1)=200kPaInitial volume (V1)=0.05m3Pressure…

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

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Q: Air is contained in a piston-cylinder arrangement with an initial volume of 0.02 m³ and at an…

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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: mass of ice at -4°C is needed to cool 115 kg of vegetables in a bunker for 24 hours. The initial…

A: Given                           Mass, m = 115 kg       Specific heat of water = 4.22 kJ/kg.K…

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

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Q: The internal energy of a certain ideal gas is given by the expression U=850 + 0.529pv Btu/lb Where p…

A: Given data:- U= (850 + 0.529pv ) Btu/lb  To find:-the exponent k

Q: Consider a sealed, rigid container of 10 kg of water vapor at 25°C and 80 kPa. A paddle wheel with a…

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Q: A frictionless piston-cylinder device contains 0.25kg of saturated vapor refrigerant 134a at 200kPa.…

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Q: A 0.15 kg of air contained in a piston-cylinder device where the initial pressure was 2000 kPa and…

A: Given Processes: 1-2 Isothermal Expansion to 500 kPa 2-3 Polytropic Compression with n = 1.2 to 2000…

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.