An insulated piston-cylinder device contains 4.5 L of saturated liquid water at a constant pressure of 200 kPa. Water is stirred by a paddle wheel while a current of 20 A flows for 42 min through a resistor placed in the water. If 36% of the liquid is evaporated during this constant pressure process and the paddle-wheel work amounts to 280 kJ, determine the voltage of the source. Also, show the process on a P-v diagram with respect to saturation lines.

Q: A frictionless piston-cylinder device contains 3L of saturated liquid water at a pressure of 200…

A: Given:V=3 LP=200 KPat=22 min i=7.5 AV=160 V

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

A: vapor pressure = 200kPa loss pf heat = 10kJ PRESSURE RISES TO = 300KPA

Q: Initially, a rigid tank contains 500L of water at 300°C. By volume, the tank contains60% liquid and…

A:

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: 3. A room is to be heated by 1000 kg of a liquid contained in a tank placed in the room. The room is…

A: The mass of the liquid is m=1000 kg The final temperature of the liquid is Tf=25°C=298 K The heat…

Q: Calculate the boundary work done by the system during this process

A:

Q: Steam at a pressure of 2MPa and with a temperature of 2000 expanded to a pressure of 0.4MPa, the law…

A: Given that:Steam at pressure = 2 MP aTemperature = 250o CExpended to pressure = 0.4 MP aLaw of…

Q: Shown in the figure, an insulated rigid tank is divided into two equal parts by a partition.…

A: Giveninsulated tankm=4kgP1=600kPaT1=300KR=0.287 kJ/kgKCv=0.7180 kJ/kgK∆U=mCvT2-T1

Q: A rigid tank initially contains 4 kg of saturated liquid R-134a at 24C. A valve in the bottom of the…

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Q: A piston-cylinder device contains 25 g of saturated water vapor which is maintained at a constant…

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Q: A refrigeration system uses R 12 as the refrigerant. The system is evacuated, then charged with…

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Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

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Q: An insulated piston-cylinder device contains 4 L of saturated liquid water at a constant pressure of…

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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: Analyse an industrial thermodynamic system (refrigeration systems) in terms of work done, from first…

A: Analyzing an industrial thermodynamic system such as a refrigeration system in terms of work done…

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

A:

Q: Initially, a rigid tank contains 500L of water at 300°C. By volume, the tank contains 60% liquid and…

A: Qin+m1u1+m2u2-mfhf=0Qin=m2u2+mfhf-m1u1

Q: Initially, a rigid tank contains 50OL of water at 300°C. By volume, the tank contains60% liquid and…

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Q: 2 lbm of refrigerant-134a occupy a 3 ft^3 system at 50 psia. In what state is the refrigerant…

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Q: Plot DSa and DSw as functions of Tw on a single graph. Plot DSsys [DSsys = DSa +DSw] as functions of…

A: the graphs are in last two pages i solved whole question

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.