1) A piston-cylinder assembly contains 10 kg of refrigerant 134a. Initially, 8 kg of SA134a is in the liquid phase and the temperature is -10°C. Then there is a slow heat transfer to SA-134a, the piston rises and the piston touches the stoppers when the volume is 400 liters. (a) Show the phase change in the P-V diagram, (b) the temperature of the system at the moment the piston contacts the stoppers, (c) calculate the work done during the process.

Q: One mole of gas undergoes the cycle shown in the p-V diagram below. Po Po/32 Vo 2Vo 8 Vo Volume 16…

A: GIVEN DATA - A THERMODYNAMIC CYCLE GIVEN WE HAVE TO ANSWER ALL THREE POINT

Q: Mr Luda wants to understand further about a newly created gas. The gas is initially at a pressure of…

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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: Three moles of an ideal gas expand isothermally at 400 K to 3.0 times the initial volume. What is…

A: Thermodynamics

Q: Please give me the solution in handwritten format, include correct sign and explanation. Strictly…

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Q: Two vessels A and B of different sizes are connected by a pipe with a valve. Vessel A contains 140 L…

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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: piston-cylinder device initially contains 65-L of liquid water at 40C and 190 kPa. Heat is…

A: Given Data V1 =65 L =0.065 m3 State 1: 190 kPa, 40°C

Q: P2. A piston-cylinder device that initially has a volume of 0.03 m3 contains inside it saturated…

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Q: How did you determine the properties of water at state 3?

A: This question is based on the concept of Rankine cycle.

Q: a- What is the final pressure and the specific work done during the process? b- Draw the process on…

A: Temperature is given as 200 oC. Quality is given as 50 %. Water contracts isothermally to half of…

Q: A spring-loaded piston-cylinder device contains   of carbon dioxide. Initially, the spring has no…

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Q: system contains liquid water. Energy i

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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.